Question

find the value of a and b so that 1,-2 are zeros of polynomial x^3+10x^2+ax +b​

Answer 1

Answer:

Step-by-step explanation:

if 1 is a zero of the polynomial

then x-1 is a factor of x^3+10x^2+ax+b

on dividing x^3+10x^2+ax+b by x-1

we get remainder as b+(a+11)

so a+11=0

so a=-11

so b will be 1

hope it helps;)