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3 years ago

Solving quadratics by factoringx2-4x-25=-4x

Mathematics

1 answer:

DiKsa [7]3 years ago

6 0

Answer:

x = ± 5

Step-by-step explanation:

Given

x² - 4x - 25 = - 4x ( add 4x to both sides )

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take the square root of both sides )

x = ± $\sqrt{25}$ = ± 5

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