Factor completely. x2 - 3x - 28

Mathematics

2 answers:

Dmitrij [34]3 years ago

5 0

X^2-3x-28

(x-7)(x+4) is the factored form of the polynomial

REY [17]3 years ago

5 0

<span>A. (x - 7)(x + 4) this is the answer

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kvv77 [185]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
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\end{array}
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\\\\\\
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$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
&P&(~ -1 &,& -\frac{12}{5}~) 
&B&(~ 2 &,& 0~)
\end{array}
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\\\\\\
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so, let's check the ratio of AP:PB

$\bf AP:PB\implies \cfrac{AP}{PB}\implies \cfrac{\frac{2\sqrt{41}}{5}}{\frac{3\sqrt{41}}{5}}\implies \cfrac{2\underline{\sqrt{41}}}{\underline{5}}\cdot \cfrac{\underline{5}}{3\underline{\sqrt{41}}}\implies \cfrac{2}{3}$

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