3x+40=-x^2-56

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Solution for 3x+40=-x^2-56 equation:


Simplifying
3x + 40 = -1x2 + -56

Reorder the terms:
40 + 3x = -1x2 + -56

Reorder the terms:
40 + 3x = -56 + -1x2

Solving
40 + 3x = -56 + -1x2

Solving for variable 'x'.

Reorder the terms:
40 + 56 + 3x + x2 = -56 + -1x2 + 56 + x2

Combine like terms: 40 + 56 = 96
96 + 3x + x2 = -56 + -1x2 + 56 + x2

Reorder the terms:
96 + 3x + x2 = -56 + 56 + -1x2 + x2

Combine like terms: -56 + 56 = 0
96 + 3x + x2 = 0 + -1x2 + x2
96 + 3x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
96 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-96' to each side of the equation.
96 + 3x + -96 + x2 = 0 + -96

Reorder the terms:
96 + -96 + 3x + x2 = 0 + -96

Combine like terms: 96 + -96 = 0
0 + 3x + x2 = 0 + -96
3x + x2 = 0 + -96

Combine like terms: 0 + -96 = -96
3x + x2 = -96

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -96 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -96 + 2.25

Combine like terms: -96 + 2.25 = -93.75
2.25 + 3x + x2 = -93.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -93.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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