Question

Find value of polynomial (x-2)^2-(x+2)^2​

Answer 1

(x-2)^2=x^2+4-2(X)(2)=x^2-4x+4 - 1

(x+2)^2=x^2+4+4x-2

1-2

=-8x

Answer 2

Answer:

-8x

Step-by-step explanation:

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

formula:- (a-b) ^2= a^2-2ab+b^2

(a+b) ^2=a^2+2ab+b^2

so(x-2) ^2-(x+2)^2= x^2-4x+4-x^2-4x-4

=-8x