Solve the equation by factoring x^-2x=15

Roizpi asked Apr 15, 2022

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32 votes

Solve the equation by factoring
x^-2x=15

Roizpi asked Apr 15, 2022

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22 votes

Explanation:

Add one to both sides of the equation:

x^2 - 2x + 1 = 15 + 1

$\Rightarrow (x - 1)^2 = 16$

Taking the square root of the equation above, we get

$x - 1 = \pm 4$

$x = 1 \pm 4 = 5, -3$

Cammy answered Apr 19, 2022

by Cammy

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