Question

when 2x^3 + 9x^2- 5x- K is divided by x-2 ,the remainder is 30 .find the value of k​

Answer 1

Answer:

X-2=0

X=2

Substitute the value of X in equation

2*2^3+9*2^2-5*2-K=30

16+36-10-K=30

42-K=30

K=42-30

K=12