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13-03-2018
Mathematics

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What are the solutions to the equation x(x + 1) = 0?

A. x = 0 only

B. x = 1 only

C. x = 0 or x = 1

D. x = 0 or x = -1

Respuesta :

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13-03-2018

The answer is D: x = 0 or x = -1

Proof:

Solve for x over the real numbers:
x (x + 1) = 0

Split into two equations:
x = 0 or x + 1 = 0

Subtract 1 from both sides:
Answer: x = 0 or x = -1

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