Question

x² + x + 1 by 1 - x​

Answer 1

very some based on same base algebra.

Ana.

(x2+x+1)×(x-1)=step 1:

multiply each digit of bracket1st by first digit of bracket2nd viz

xx2+ xx+x1= x3+x2+x (A)

step2:

-1×x2+-1×x+-1×1=—-x2-x-1 (B)

step3:

add A &B

x3+x2+x-x2-x-1=x3-1

The answer is x2 +x+1 multiply by x-1 the answer is x3-1.

Thanks.