2(x^2-8)+5=25

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Solution for 2(x^2-8)+5=25 equation: 


Simplifying
2(x2 + -8) + 5 = 25

Reorder the terms:
2(-8 + x2) + 5 = 25
(-8 * 2 + x2 * 2) + 5 = 25
(-16 + 2x2) + 5 = 25

Reorder the terms:
-16 + 5 + 2x2 = 25

Combine like terms: -16 + 5 = -11
-11 + 2x2 = 25

Solving
-11 + 2x2 = 25

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 11 + 2x2 = 25 + 11

Combine like terms: -11 + 11 = 0
0 + 2x2 = 25 + 11
2x2 = 25 + 11

Combine like terms: 25 + 11 = 36
2x2 = 36

Divide each side by '2'.
x2 = 18

Simplifying
x2 = 18

Take the square root of each side:
x = {-4.242640687, 4.242640687}

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