4x^2+4x+7=3x^2-8

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Solution for 4x^2+4x+7=3x^2-8 equation:


Simplifying
4x2 + 4x + 7 = 3x2 + -8

Reorder the terms:
7 + 4x + 4x2 = 3x2 + -8

Reorder the terms:
7 + 4x + 4x2 = -8 + 3x2

Solving
7 + 4x + 4x2 = -8 + 3x2

Solving for variable 'x'.

Reorder the terms:
7 + 8 + 4x + 4x2 + -3x2 = -8 + 3x2 + 8 + -3x2

Combine like terms: 7 + 8 = 15
15 + 4x + 4x2 + -3x2 = -8 + 3x2 + 8 + -3x2

Combine like terms: 4x2 + -3x2 = 1x2
15 + 4x + 1x2 = -8 + 3x2 + 8 + -3x2

Reorder the terms:
15 + 4x + 1x2 = -8 + 8 + 3x2 + -3x2

Combine like terms: -8 + 8 = 0
15 + 4x + 1x2 = 0 + 3x2 + -3x2
15 + 4x + 1x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
15 + 4x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + 4x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + 4x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 4x + x2 = 0 + -15
4x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
4x + x2 = -15

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = -15 + 4

Reorder the terms:
4 + 4x + x2 = -15 + 4

Combine like terms: -15 + 4 = -11
4 + 4x + x2 = -11

Factor a perfect square on the left side:
(x + 2)(x + 2) = -11

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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