5x^2-10x+64=40

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Solution for 5x^2-10x+64=40 equation:


Simplifying
5x2 + -10x + 64 = 40

Reorder the terms:
64 + -10x + 5x2 = 40

Solving
64 + -10x + 5x2 = 40

Solving for variable 'x'.

Reorder the terms:
64 + -40 + -10x + 5x2 = 40 + -40

Combine like terms: 64 + -40 = 24
24 + -10x + 5x2 = 40 + -40

Combine like terms: 40 + -40 = 0
24 + -10x + 5x2 = 0

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

Divide each side by '5'.
4.8 + -2x + x2 = 0

Move the constant term to the right:

Add '-4.8' to each side of the equation.
4.8 + -2x + -4.8 + x2 = 0 + -4.8

Reorder the terms:
4.8 + -4.8 + -2x + x2 = 0 + -4.8

Combine like terms: 4.8 + -4.8 = 0.0
0.0 + -2x + x2 = 0 + -4.8
-2x + x2 = 0 + -4.8

Combine like terms: 0 + -4.8 = -4.8
-2x + x2 = -4.8

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -4.8 + 1

Reorder the terms:
1 + -2x + x2 = -4.8 + 1

Combine like terms: -4.8 + 1 = -3.8
1 + -2x + x2 = -3.8

Factor a perfect square on the left side:
(x + -1)(x + -1) = -3.8

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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