Question

if f(x) = (a-2) x^3 + (b-3)x^2 +5x +7 is a linear polynomial then (a-b) ab is equal to

Answer 1

Answer:

-6

Step-by-step explanation:

For linear polynomial coefficient of x^3 and x^2 must be zero.

so,

a-2=0

a=2

b-3=0

b=3

(a-b)ab=(2-3)×2×3=-6