x^2+64=7x

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Solution for x^2+64=7x equation:


Simplifying
x2 + 64 = 7x

Reorder the terms:
64 + x2 = 7x

Solving
64 + x2 = 7x

Solving for variable 'x'.

Reorder the terms:
64 + -7x + x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
64 + -7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-64' to each side of the equation.
64 + -7x + -64 + x2 = 0 + -64

Reorder the terms:
64 + -64 + -7x + x2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + -7x + x2 = 0 + -64
-7x + x2 = 0 + -64

Combine like terms: 0 + -64 = -64
-7x + x2 = -64

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = -64 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -64 + 12.25

Combine like terms: -64 + 12.25 = -51.75
12.25 + -7x + x2 = -51.75

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = -51.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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