Question

22. (x+1) is a factor of the polynomial
(a) x² + x²-x+1
(c) x² + 2x²-x+2
(b) x + 2x²-x-2
(d) x* + x + x +1​

Answer 1

Step-by-step explanation:

x=-1

c)

-1+2(-1)^2-(-1)-2

-1+2+1-2=0

so,x+1 is factor of polynomial x+2x^2-x-2

Answer 2

Answer is ==】you can solve by putting X= -1 in given equation

proof ==】

x + 2x^2 - x -2

= 2x^2 -2

= 2( x^2 -1)

= 2 (x^2 -1^2)

= 2 ( x-1 ) (x+1)