x^2-8x+73=-4

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Solution for x^2-8x+73=-4 equation:


Simplifying
x2 + -8x + 73 = -4

Reorder the terms:
73 + -8x + x2 = -4

Solving
73 + -8x + x2 = -4

Solving for variable 'x'.

Reorder the terms:
73 + 4 + -8x + x2 = -4 + 4

Combine like terms: 73 + 4 = 77
77 + -8x + x2 = -4 + 4

Combine like terms: -4 + 4 = 0
77 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-77' to each side of the equation.
77 + -8x + -77 + x2 = 0 + -77

Reorder the terms:
77 + -77 + -8x + x2 = 0 + -77

Combine like terms: 77 + -77 = 0
0 + -8x + x2 = 0 + -77
-8x + x2 = 0 + -77

Combine like terms: 0 + -77 = -77
-8x + x2 = -77

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 = -77 + 16

Reorder the terms:
16 + -8x + x2 = -77 + 16

Combine like terms: -77 + 16 = -61
16 + -8x + x2 = -61

Factor a perfect square on the left side:
(x + -4)(x + -4) = -61

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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