x^2+10x+72=0

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Solution for x^2+10x+72=0 equation:


Simplifying
x2 + 10x + 72 = 0

Reorder the terms:
72 + 10x + x2 = 0

Solving
72 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-72' to each side of the equation.
72 + 10x + -72 + x2 = 0 + -72

Reorder the terms:
72 + -72 + 10x + x2 = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 10x + x2 = 0 + -72
10x + x2 = 0 + -72

Combine like terms: 0 + -72 = -72
10x + x2 = -72

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = -72 + 25

Reorder the terms:
25 + 10x + x2 = -72 + 25

Combine like terms: -72 + 25 = -47
25 + 10x + x2 = -47

Factor a perfect square on the left side:
(x + 5)(x + 5) = -47

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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