x^2+7x+99=76

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Solution for x^2+7x+99=76 equation:


Simplifying
x2 + 7x + 99 = 76

Reorder the terms:
99 + 7x + x2 = 76

Solving
99 + 7x + x2 = 76

Solving for variable 'x'.

Reorder the terms:
99 + -76 + 7x + x2 = 76 + -76

Combine like terms: 99 + -76 = 23
23 + 7x + x2 = 76 + -76

Combine like terms: 76 + -76 = 0
23 + 7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-23' to each side of the equation.
23 + 7x + -23 + x2 = 0 + -23

Reorder the terms:
23 + -23 + 7x + x2 = 0 + -23

Combine like terms: 23 + -23 = 0
0 + 7x + x2 = 0 + -23
7x + x2 = 0 + -23

Combine like terms: 0 + -23 = -23
7x + x2 = -23

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 = -23 + 12.25

Reorder the terms:
12.25 + 7x + x2 = -23 + 12.25

Combine like terms: -23 + 12.25 = -10.75
12.25 + 7x + x2 = -10.75

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = -10.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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