Question

EXPAND AND PLEASE EXPLAIN FOR BRAINLIEST (x-1)(x+1)

Answer 1

Answer:  The answer is x^2-1

Step-by-step explanation:

Step 1: Multiplication can be transformed into difference of squares using the rule: (a−b)(a+b)=a^2  −b^2

 x^2 −1^ 2

Step 2: Calculate 1 to the power of 2 and get 1.

x^ 2  −1

Answer 2

Answer:

x^2 -1

Step-by-step explanation:

-1×x + -1×1 + x×1 + x×x

= x^2 -x +x -1

= x^2 -1

${x}^{2} - 1$