Producer of x^(2) -4x-21

asked Jan 24, 2023 58.2k views

1 vote

Producer of
x^(2) -4x-21

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Answer:

(x - 7)(x + 3)

Step-by-step explanation:

$\rightarrow \sf x^2 - 4x - 21$

breakdown

$\rightarrow \sf x^2 - 7x +3x- 21$

factor out common terms

$\rightarrow \sf x(x - 7) +3(x- 7)$

collect into groups

$\rightarrow \sf (x+3)(x- 7)$

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