3x=(-2x*-2x)-7

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Solution for 3x=(-2x*-2x)-7 equation:


Simplifying
3x = (-2x * -2x) + -7

Reorder the terms for easier multiplication:
3x = (-2 * -2x * x) + -7

Multiply -2 * -2
3x = (4x * x) + -7

Multiply x * x
3x = (4x2) + -7

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

Solving
3x = -7 + (4x2)

Solving for variable 'x'.

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

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

Combine like terms: -7 + 7 = 0
7 + 3x + (-4x2) = 0 + (4x2) + (-4x2)
7 + 3x + (-4x2) = (4x2) + (-4x2)

Combine like terms: (4x2) + (-4x2) = 0
7 + 3x + (-4x2) = 0

Factor a trinomial.
(7 + -4x)(1 + x) = 0

Subproblem 1

Set the factor '(7 + -4x)' equal to zero and attempt to solve: Simplifying 7 + -4x = 0 Solving 7 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4x = 0 + -7 -4x = 0 + -7 Combine like terms: 0 + -7 = -7 -4x = -7 Divide each side by '-4'. x = 1.75 Simplifying x = 1.75

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 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 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {1.75, -1}

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