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

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


Simplifying
4x2 + 7 = -8x + 4

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

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

Solving
7 + 4x2 = 4 + -8x

Solving for variable 'x'.

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

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

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

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

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

Factor a trinomial.
(3 + 2x)(1 + 2x) = 0

Subproblem 1

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(1 + 2x)' equal to zero and attempt to solve: Simplifying 1 + 2x = 0 Solving 1 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = 0 + -1 2x = 0 + -1 Combine like terms: 0 + -1 = -1 2x = -1 Divide each side by '2'. x = -0.5 Simplifying x = -0.5

Solution

x = {-1.5, -0.5}

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