Question

simplyfy:(x-2 )(x²+2x+3)and find the value of expression at x=–¹​

Answer 1

Here is the answer to your question:

Simplification of the equation :

(x-2)(x^2+2x+3)

x(x^2+2x+3)-2(x^2+2x+3)

x^3+2x^2+3x-2x^2-4x-6

x^3-x-6

Taking x=(-1)

(-1)^3-(-1)-6

-1+1-6

-6

Therefore your answer is -6 after putting the value as x=(-1)