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

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


Simplifying
9x2 + -1x + 25 = 8x2 + 8x

Reorder the terms:
25 + -1x + 9x2 = 8x2 + 8x

Reorder the terms:
25 + -1x + 9x2 = 8x + 8x2

Solving
25 + -1x + 9x2 = 8x + 8x2

Solving for variable 'x'.

Reorder the terms:
25 + -1x + -8x + 9x2 + -8x2 = 8x + 8x2 + -8x + -8x2

Combine like terms: -1x + -8x = -9x
25 + -9x + 9x2 + -8x2 = 8x + 8x2 + -8x + -8x2

Combine like terms: 9x2 + -8x2 = 1x2
25 + -9x + 1x2 = 8x + 8x2 + -8x + -8x2

Reorder the terms:
25 + -9x + 1x2 = 8x + -8x + 8x2 + -8x2

Combine like terms: 8x + -8x = 0
25 + -9x + 1x2 = 0 + 8x2 + -8x2
25 + -9x + 1x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
25 + -9x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + -9x + -25 + x2 = 0 + -25

Reorder the terms:
25 + -25 + -9x + x2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -9x + x2 = 0 + -25
-9x + x2 = 0 + -25

Combine like terms: 0 + -25 = -25
-9x + x2 = -25

The x term is -9x.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9x + 20.25 + x2 = -25 + 20.25

Reorder the terms:
20.25 + -9x + x2 = -25 + 20.25

Combine like terms: -25 + 20.25 = -4.75
20.25 + -9x + x2 = -4.75

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = -4.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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