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02-04-2020
Mathematics

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help!
Factor the expressions.
x^2 − 4x − 45 =

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Аноним Аноним

02-04-2020

Answer:

(x - 9)(x + 5)

Step-by-step explanation:

x² − 4x − 45 =

= x² + 5x - 9x - 45

= x(x + 5) - 9(x + 5)

= (x - 9)(x + 5)

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