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3 years ago

What are the solutions to the equation x² = 256?

2 answers:

8 0

x² = 256
x = ±√256
x = ±16

 the solutions are x = -16 and x = 16

Artyom0805 [142]3 years ago

6 0

X = 16
x = - 16

You could do it this way
x^2 - 256 = 0
(x - 16)(x + 16) = 0
x - 16 = 0
x = 16

x + 16 = 0
x = - 16

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