9x^2-2+25=8x^2+8x

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Solution for 9x^2-2+25=8x^2+8x equation:


Simplifying
9x2 + -2 + 25 = 8x2 + 8x

Reorder the terms:
-2 + 25 + 9x2 = 8x2 + 8x

Combine like terms: -2 + 25 = 23
23 + 9x2 = 8x2 + 8x

Reorder the terms:
23 + 9x2 = 8x + 8x2

Solving
23 + 9x2 = 8x + 8x2

Solving for variable 'x'.

Reorder the terms:
23 + -8x + 9x2 + -8x2 = 8x + 8x2 + -8x + -8x2

Combine like terms: 9x2 + -8x2 = 1x2
23 + -8x + 1x2 = 8x + 8x2 + -8x + -8x2

Reorder the terms:
23 + -8x + 1x2 = 8x + -8x + 8x2 + -8x2

Combine like terms: 8x + -8x = 0
23 + -8x + 1x2 = 0 + 8x2 + -8x2
23 + -8x + 1x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
23 + -8x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-23' to each side of the equation.
23 + -8x + -23 + x2 = 0 + -23

Reorder the terms:
23 + -23 + -8x + x2 = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -8x + x2 = 0 + -23
-8x + x2 = 0 + -23

Combine like terms: 0 + -23 = -23
-8x + x2 = -23

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -23 + 16

Reorder the terms:
16 + -8x + x2 = -23 + 16

Combine like terms: -23 + 16 = -7
16 + -8x + x2 = -7

Factor a perfect square on the left side:
(x + -4)(x + -4) = -7

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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