Question

(x-2)(x+4) find product

Answer 1

We have,

$\quad (x - 2)(x + 4) \red{ \Longleftarrow \bf question} \\ \\ = x(x + 4) - 2(x + 4) \\ \\ = x(x) + x(4) - 2(x) - 2(4) \\ \\ = {x}^{2} + 4x - 2x - 8 \\ \\ = {x}^{2} + (4 - 2)x - 8 \\ \\ = \boxed{ {x}^{2} + 2x - 8} \red{\Longleftarrow} \green{ \bf answer}$

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Answer 2

Answer:

(x-2) (x+2) =0

2x -2+2=0

2x=0-2+2

x=1/2