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Svetach [21]
3 years ago
6

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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