x(x-5)=2x(x-7)+5(x+9)

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Solution for x(x-5)=2x(x-7)+5(x+9) equation:


Simplifying
x(x + -5) = 2x(x + -7) + 5(x + 9)

Reorder the terms:
x(-5 + x) = 2x(x + -7) + 5(x + 9)
(-5 * x + x * x) = 2x(x + -7) + 5(x + 9)
(-5x + x2) = 2x(x + -7) + 5(x + 9)

Reorder the terms:
-5x + x2 = 2x(-7 + x) + 5(x + 9)
-5x + x2 = (-7 * 2x + x * 2x) + 5(x + 9)
-5x + x2 = (-14x + 2x2) + 5(x + 9)

Reorder the terms:
-5x + x2 = -14x + 2x2 + 5(9 + x)
-5x + x2 = -14x + 2x2 + (9 * 5 + x * 5)
-5x + x2 = -14x + 2x2 + (45 + 5x)

Reorder the terms:
-5x + x2 = 45 + -14x + 5x + 2x2

Combine like terms: -14x + 5x = -9x
-5x + x2 = 45 + -9x + 2x2

Solving
-5x + x2 = 45 + -9x + 2x2

Solving for variable 'x'.

Reorder the terms:
-45 + -5x + 9x + x2 + -2x2 = 45 + -9x + 2x2 + -45 + 9x + -2x2

Combine like terms: -5x + 9x = 4x
-45 + 4x + x2 + -2x2 = 45 + -9x + 2x2 + -45 + 9x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-45 + 4x + -1x2 = 45 + -9x + 2x2 + -45 + 9x + -2x2

Reorder the terms:
-45 + 4x + -1x2 = 45 + -45 + -9x + 9x + 2x2 + -2x2

Combine like terms: 45 + -45 = 0
-45 + 4x + -1x2 = 0 + -9x + 9x + 2x2 + -2x2
-45 + 4x + -1x2 = -9x + 9x + 2x2 + -2x2

Combine like terms: -9x + 9x = 0
-45 + 4x + -1x2 = 0 + 2x2 + -2x2
-45 + 4x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-45 + 4x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
45 + -4x + x2 = 0

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -4x + -45 + x2 = 0 + -45

Reorder the terms:
45 + -45 + -4x + x2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -4x + x2 = 0 + -45
-4x + x2 = 0 + -45

Combine like terms: 0 + -45 = -45
-4x + x2 = -45

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -45 + 4

Reorder the terms:
4 + -4x + x2 = -45 + 4

Combine like terms: -45 + 4 = -41
4 + -4x + x2 = -41

Factor a perfect square on the left side:
(x + -2)(x + -2) = -41

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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