How do you simplify $(x - 1) (x + 2)$ $(x-1)(x+2)$ ?

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How do you simplify $(x - 1) (x + 2)$ $(x-1)(x+2)$ ?

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Answer 1 · 2018-06-27T16:15:24

$x^{2} + x - 2$ $color(green)(x^2+x-2$

Explanation:

$(x - 1) (x + 2)$ $(x-1)(x+2)$
$a a a a a a a a a a a a a$ $color(white)(aaaaaaaaaaaaa)$ $x - 1$ $x-1$
$a a a a a a a a a a a$ $color(white)(aaaaaaaaaaa)$ $xx underline(x+2)$
$color(white)(aaaaaaaaaaaaa)$ $x^2-x$
$color(white)(aaaaaaaaaaaaaaaa)$ $+2x-2$
$color(white)(aaaaaaaaaaaaaa)$ $overline(x^2+x-2)$

$color(white)(aaaaaaaaaaaaaa)$ $color(green)(x^2+x-2$

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How do you simplify $(x - 1) (x + 2)$ $(x-1)(x+2)$ ?

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