Question

Without actual division prove that f(x) = 2x3 + 13x2 + x – 70 is exactly divisible by x -2.​

Answer 1

Step-by-step explanation:

let x-2=0

x=2

put the value of x in f(x)

2(2)^3 + 13(2)^2 + 2 - 70

2×8 + 13×4 + 2-70

16+52+2-70

0

if reminder is zero then f(x) is exactly divisible by x-2