Question

84-2r-2r2 expand and solve

Answer 1

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$<u><b>Here Is Your Answer</b></u>$



$\implies {-2r}^{2}-2r+84$


$\implies -2({r}^{2}+r-42)$


$\implies -2({r}^{2}+7r-6r-42)$


$\implies -2[r(r+7)-6(r+7)$


$\implies -2(r-6)(r+7)$




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Answer 2

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$<b><i><font face=Copper black size=4 color=blue>$ Here is your answer.
$84 - 2r - 2 {r}^{2} \\ = - 2( {r}^{2} + r - 42) \\ = - 2( {r}^{2} + 7r - 6r - 42) \\ = - 2(r(r + 7) - 6(r + 7)) \\ = - 2(r + 7)(r - 7)$
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