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AllQuestion and Answers: Page 465

Question Number 171846 Answers: 0 Comments: 2

solve: x^9 −2x^5 −3x=0

$${solve}: \\ $$$${x}^{\mathrm{9}} −\mathrm{2}{x}^{\mathrm{5}} −\mathrm{3}{x}=\mathrm{0} \\ $$

Question Number 171845 Answers: 0 Comments: 0

n_c_(r+1) + n_c_r =n+1_c_(r .solve for n and r.)

$${n}_{{c}_{{r}+\mathrm{1}} } +\:{n}_{{c}_{{r}} } ={n}+\mathrm{1}_{{c}_{{r}\:\:.{solve}\:{for}\:\:{n}\:{and}\:{r}.} } \\ $$

Question Number 171844 Answers: 1 Comments: 0

solve: x^5 −5x^4 +9x^3 −9x^2 +5x−1=0

$${solve}: \\ $$$${x}^{\mathrm{5}} −\mathrm{5}{x}^{\mathrm{4}} +\mathrm{9}{x}^{\mathrm{3}} −\mathrm{9}{x}^{\mathrm{2}} +\mathrm{5}{x}−\mathrm{1}=\mathrm{0} \\ $$

Question Number 171843 Answers: 0 Comments: 0

find a: (2:3:4:5)a=5:6:7:8

$${find}\:{a}: \\ $$$$\left(\mathrm{2}:\mathrm{3}:\mathrm{4}:\mathrm{5}\right){a}=\mathrm{5}:\mathrm{6}:\mathrm{7}:\mathrm{8} \\ $$

Question Number 171841 Answers: 1 Comments: 0

solve: 2^((5x−20)) =1!

$${solve}: \\ $$$$\mathrm{2}^{\left(\mathrm{5}{x}−\mathrm{20}\right)} =\mathrm{1}! \\ $$

Question Number 171840 Answers: 0 Comments: 0

solve: a^3 +9ab^2 =26 a^2 b+ab^3 =15

$${solve}: \\ $$$${a}^{\mathrm{3}} +\mathrm{9}{ab}^{\mathrm{2}} =\mathrm{26} \\ $$$${a}^{\mathrm{2}} {b}+{ab}^{\mathrm{3}} =\mathrm{15} \\ $$

Question Number 171839 Answers: 0 Comments: 0

solve the simultaneous eqn y=ax^2 +bx+c y=b_1 x+c_1

$${solve}\:{the}\:{simultaneous}\:{eqn} \\ $$$${y}={ax}^{\mathrm{2}} +{bx}+{c} \\ $$$${y}={b}_{\mathrm{1}} {x}+{c}_{\mathrm{1}} \\ $$

Question Number 171838 Answers: 0 Comments: 0

solve: 4^x^2 +3x=6

$${solve}: \\ $$$$\mathrm{4}^{{x}^{\mathrm{2}} } +\mathrm{3}{x}=\mathrm{6} \\ $$

Question Number 171837 Answers: 1 Comments: 0

solve: 2x+3y=2 x+y=5xy

$${solve}: \\ $$$$\mathrm{2}{x}+\mathrm{3}{y}=\mathrm{2} \\ $$$${x}+{y}=\mathrm{5}{xy} \\ $$

Question Number 171836 Answers: 1 Comments: 0

solve: x+3y=1 xy=y^2 −3

$${solve}: \\ $$$${x}+\mathrm{3}{y}=\mathrm{1} \\ $$$${xy}={y}^{\mathrm{2}} −\mathrm{3} \\ $$

Question Number 171835 Answers: 1 Comments: 0

solve for x: x^5 +x^4 +1=0

$${solve}\:{for}\:{x}: \\ $$$${x}^{\mathrm{5}} +{x}^{\mathrm{4}} +\mathrm{1}=\mathrm{0} \\ $$

Question Number 171834 Answers: 0 Comments: 0

solve for x: x^x^x^x =2

$${solve}\:{for}\:{x}: \\ $$$${x}^{{x}^{{x}^{{x}} } } =\mathrm{2} \\ $$

Question Number 171833 Answers: 0 Comments: 0

solve: ax^3 +bx^2 +cx+d=0

$${solve}: \\ $$$${ax}^{\mathrm{3}} +{bx}^{\mathrm{2}} +{cx}+{d}=\mathrm{0} \\ $$

Question Number 171830 Answers: 0 Comments: 0

solve for x,y,z xy+3x+2y=−6 yz+y+3z=−3 zx+2z+x=2

$${solve}\:{for}\:{x},{y},{z} \\ $$$${xy}+\mathrm{3}{x}+\mathrm{2}{y}=−\mathrm{6} \\ $$$${yz}+{y}+\mathrm{3}{z}=−\mathrm{3} \\ $$$${zx}+\mathrm{2}{z}+{x}=\mathrm{2} \\ $$

Question Number 171829 Answers: 1 Comments: 0

please i need cubic formula

$${please}\:{i}\:{need}\:{cubic}\:{formula} \\ $$$$ \\ $$

Question Number 171828 Answers: 0 Comments: 2

solve for x: 2log_x 4=log_2 x

$${solve}\:{for}\:{x}: \\ $$$$\mathrm{2}{log}_{{x}} \mathrm{4}={log}_{\mathrm{2}} {x} \\ $$$$ \\ $$

Question Number 171827 Answers: 0 Comments: 0

solve for x and y: x^2 −2xy=5 xy+3y^2 =10

$${solve}\:{for}\:{x}\:{and}\:{y}: \\ $$$${x}^{\mathrm{2}} −\mathrm{2}{xy}=\mathrm{5} \\ $$$${xy}+\mathrm{3}{y}^{\mathrm{2}} =\mathrm{10} \\ $$

Question Number 171826 Answers: 1 Comments: 0

if a+b+c=0,find the value of (a^2 /(bc))+(b^2 /(ca))+(c^2 /(ab))

$${if}\:{a}+{b}+{c}=\mathrm{0},{find}\:{the}\:{value}\:{of}\: \\ $$$$\frac{{a}^{\mathrm{2}} }{{bc}}+\frac{{b}^{\mathrm{2}} }{{ca}}+\frac{{c}^{\mathrm{2}} }{{ab}} \\ $$

Question Number 171825 Answers: 1 Comments: 0

solve for x and y: x^2 +y^2 =10 (1/x)+(1/y)=(4/3)

$${solve}\:{for}\:{x}\:{and}\:{y}: \\ $$$${x}^{\mathrm{2}} +{y}^{\mathrm{2}} =\mathrm{10} \\ $$$$\frac{\mathrm{1}}{{x}}+\frac{\mathrm{1}}{{y}}=\frac{\mathrm{4}}{\mathrm{3}} \\ $$

Question Number 171824 Answers: 0 Comments: 0

solve for a,b,c,d a+b=9 ab+c+d=29 ad+bc=3 cd=18

$${solve}\:{for}\:{a},{b},{c},{d} \\ $$$${a}+{b}=\mathrm{9} \\ $$$${ab}+{c}+{d}=\mathrm{29} \\ $$$${ad}+{bc}=\mathrm{3} \\ $$$${cd}=\mathrm{18} \\ $$$$ \\ $$$$ \\ $$$$ \\ $$

Question Number 171823 Answers: 1 Comments: 0

solve for y: y^4 −34y^2 +225=0

$${solve}\:{for}\:{y}: \\ $$$${y}^{\mathrm{4}} −\mathrm{34}{y}^{\mathrm{2}} +\mathrm{225}=\mathrm{0} \\ $$

Question Number 171822 Answers: 0 Comments: 1

solve for x: x^x^x^(2017) =2017

$${solve}\:{for}\:{x}: \\ $$$${x}^{{x}^{{x}^{\mathrm{2017}} } } =\mathrm{2017} \\ $$

Question Number 171821 Answers: 0 Comments: 1

solve for x: x(√x) −11(√x) =10, find x−(√x)

$${solve}\:{for}\:{x}: \\ $$$${x}\sqrt{{x}}\:−\mathrm{11}\sqrt{{x}}\:=\mathrm{10},\:{find}\:{x}−\sqrt{{x}} \\ $$

Question Number 171820 Answers: 0 Comments: 1

solve for x: x^x =2^(2048)

$${solve}\:{for}\:{x}: \\ $$$${x}^{{x}} =\mathrm{2}^{\mathrm{2048}} \\ $$

Question Number 171816 Answers: 0 Comments: 0

solve for x: ((3(x−2)+4(√(2x^3 −3x+1)))/(2(x^3 −1)))=1

$${solve}\:{for}\:{x}: \\ $$$$\frac{\mathrm{3}\left({x}−\mathrm{2}\right)+\mathrm{4}\sqrt{\mathrm{2}{x}^{\mathrm{3}} −\mathrm{3}{x}+\mathrm{1}}}{\mathrm{2}\left({x}^{\mathrm{3}} −\mathrm{1}\right)}=\mathrm{1} \\ $$

Question Number 171815 Answers: 1 Comments: 0

solve for x: (2−x^2 )^(x^2 −3(√(2 )) x+4) =1

$${solve}\:{for}\:{x}: \\ $$$$\left(\mathrm{2}−{x}^{\mathrm{2}} \right)^{{x}^{\mathrm{2}} −\mathrm{3}\sqrt{\mathrm{2}\:}\:{x}+\mathrm{4}} =\mathrm{1} \\ $$

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