Asked by Sandra
Factories x raise to power 2 minus 4x minus 21
Answers
Answered by
oobleck
real math is easier to read
x^2 - 4x - 21
now, which two factors of 21 differ by 4?
(x-7)(x+3)
x^2 - 4x - 21
now, which two factors of 21 differ by 4?
(x-7)(x+3)
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