3=4x^2+3x-7

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


Simplifying
3 = 4x2 + 3x + -7

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

Solving
3 = -7 + 3x + 4x2

Solving for variable 'x'.

Combine like terms: 3 + 7 = 10
10 + -3x + -4x2 = -7 + 3x + 4x2 + 7 + -3x + -4x2

Reorder the terms:
10 + -3x + -4x2 = -7 + 7 + 3x + -3x + 4x2 + -4x2

Combine like terms: -7 + 7 = 0
10 + -3x + -4x2 = 0 + 3x + -3x + 4x2 + -4x2
10 + -3x + -4x2 = 3x + -3x + 4x2 + -4x2

Combine like terms: 3x + -3x = 0
10 + -3x + -4x2 = 0 + 4x2 + -4x2
10 + -3x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
10 + -3x + -4x2 = 0

Factor a trinomial.
(5 + -4x)(2 + x) = 0

Subproblem 1

Set the factor '(5 + -4x)' equal to zero and attempt to solve: Simplifying 5 + -4x = 0 Solving 5 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -4x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4x = 0 + -5 -4x = 0 + -5 Combine like terms: 0 + -5 = -5 -4x = -5 Divide each side by '-4'. x = 1.25 Simplifying x = 1.25

Subproblem 2

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

Solution

x = {1.25, -2}

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