Question

the polynomial X ³ + ax²+ bx- 20 when divided by x-5 and x-3 leaves the remainder 0 and -2 respectively find a and b

Answer 1

put x-5 =0 and x-3=-2
then u will get x=5 and x=1
then put values of x in polynomial
by this we have two eq
now solve both eq by elimination method
here..u get the value of a and b..

Answer 2

a=-9.

b = 24

I hope it helps