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28-03-2020
Mathematics

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Solve the quadratic equation by completing the square.

4x2 + 8x - 7 = 0

Respuesta :

MathPhys MathPhys

28-03-2020

Step-by-step explanation:

4x² + 8x − 7 = 0

4x² + 8x = 7

x² + 2x = 7/4

x² + 2x + 1 = 11/4

(x + 1)² = 11/4

x + 1 = ±√(11/4)

x = -1 ± √(11/4)

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