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X-7 = (x + 1)² is it a quadratic equation?​

Sagot :

Answer:

Yes

Step-by-step explanation:

x - 7 = (x + 1)^2

x - 7 = x^2 + 2x + 1

x^2 + 2x + 1 = x - 7

x^2 + 2x - x + 1 + 7 = 0

x^2 + x + 8 = 0