English, asked by 1kinggamer632, 9 months ago

(x2 - 4x -21) = ?
a) (x-7)(x+3)
b) (x-7)(x-3)
c) None of these
d) (x + 7)(x-3)

Answers

Answered by mahinmushfiqur

1

Answer:

answer- A

Explanation:

x² - 7x +3x -21

=x(x-7)+3(x-7)

=(x-7)(x+3)

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