the polynomial 4x^3 +ax^2 +bx+9,
where a and b consant, is denoted by
f(x). when f(x) is divide by (x−2) the
remainder is r and when divided by
(x−3) the remaider is 6r. its further
given that (x+3) is a factor of f(x).
Show that b−a=14
and hence find a and b
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