(-1)(x+2)=x^2+5

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Solution for (-1)(x+2)=x^2+5 equation: 


Simplifying
(-1)(x + 2) = x2 + 5

Reorder the terms:
-1(2 + x) = x2 + 5
(2 * -1 + x * -1) = x2 + 5
(-2 + -1x) = x2 + 5

Reorder the terms:
-2 + -1x = 5 + x2

Solving
-2 + -1x = 5 + x2

Solving for variable 'x'.

Reorder the terms:
-2 + -5 + -1x + -1x2 = 5 + x2 + -5 + -1x2

Combine like terms: -2 + -5 = -7
-7 + -1x + -1x2 = 5 + x2 + -5 + -1x2

Reorder the terms:
-7 + -1x + -1x2 = 5 + -5 + x2 + -1x2

Combine like terms: 5 + -5 = 0
-7 + -1x + -1x2 = 0 + x2 + -1x2
-7 + -1x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-7 + -1x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(7 + x + x2) = 0

Ignore the factor -1.

Subproblem 1
Set the factor '(7 + x + x2)' equal to zero and attempt to solve:

Simplifying
7 + x + x2 = 0

Solving
7 + x + x2 = 0

Begin completing the square.

Move the constant term to the right:

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

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

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

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = -7 + 0.25

Reorder the terms:
0.25 + x + x2 = -7 + 0.25

Combine like terms: -7 + 0.25 = -6.75
0.25 + x + x2 = -6.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -6.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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