Question

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

Answer 1

x = ± 5

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 = ±
`√(25)` = ± 5