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Simplifying
X2 + -1x + -8 = -1x
Reorder the terms:
-8 + X2 + -1x = -1x
Add 'x' to each side of the equation.
-8 + X2 + -1x + x = -1x + x
Combine like terms: -1x + x = 0
-8 + X2 + 0 = -1x + x
-8 + X2 = -1x + x
Combine like terms: -1x + x = 0
-8 + X2 = 0
Solving
-8 + X2 = 0
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + X2 = 0 + 8
Combine like terms: -8 + 8 = 0
0 + X2 = 0 + 8
X2 = 0 + 8
Combine like terms: 0 + 8 = 8
X2 = 8
Simplifying
X2 = 8
Take the square root of each side:
X = {-2.828427125, 2.828427125}
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