josh233126 josh233126

15-10-2020
Mathematics

contestada

2x2 + 4x — 7 = x2 – 2x

Respuesta :

mathstudent55 mathstudent55

15-10-2020

Answer:

x = -7 or x = 1

Step-by-step explanation:

2x^2 + 4x - 7 = x^2 - 2x

x^2 + 6x - 7 = 0

(x + 7)(x - 1) = 0

x + 7 = 0 or x - 1 = 0

x = -7 or x = 1

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