Question

Expand and simplify the algebraic expression (x + 3)(x - 3) - (-x - 9)


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Answer 1

Answer:

(x square-9)+X+9

=x square+x

Answer 2

Answer:

$(x + 3)(x - 3) - ( - x - 9) \\ \\ expansion \\ {x}^{2} - 9 + x + 9 \\ = {x}^{2} + x \\ \\ simplifiacation \\ {x}^{2} - 9 + x + 9 \\ = {x}^{2} + x \\ = x(x + 1)$

hope it helps u......^_^