(X+7) (x+4)?

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(X+7) (x+4)?

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Answer 1 · 2018-05-24T15:06:51

$(x + 7) (x + 4) = x^{2} + 4 x + 7 x + 28 = x^{2} + 11 x + 28$ $(x+7)(x+4)=x^2+4x+7x+28=x^2+11x+28$

Answer 2 · 2018-05-24T15:22:41

$x^{2} + 11 x + 28$ $x^2+11x + 28$

Explanation:

$(x + 7) (x + 4) = x (x + 4) + 7 (x + 4)$ $(x+7)(x+4)= x(x+4) + 7(x+4)$
$= x^{2} + 4 x + 7 x + 28$ $=x^2 + 4x +7x + 28$
$= x^{2} + 11 x + 28$ $=x^2 +11x + 28$

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(X+7) (x+4)?

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