Which of the following are solutions to the equation below? Check all that apply. x2 - 16 = 0

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asked Jan 28, 2019 175k views

1 Answer

Allen Lavoie · Answer 1 · 2019-02-02T19:11:38+0000

I do not know if you mean x² or 2x, so here are both equations:

Equation 1:
x² - 16 = 0
x² = 16
x = √16
x = ±4
Solutions: x = 4 and x = -4

Equation 2:
2x - 16 = 0
2x = 16
x = 8
Solution: x = 8

Which of the following are solutions to the equation below? Check all that apply. x2 - 16 = 0

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