0=4x^2+16x-9

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Solution for 0=4x^2+16x-9 equation:


Simplifying
0 = 4x2 + 16x + -9

Reorder the terms:
0 = -9 + 16x + 4x2

Solving
0 = -9 + 16x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 9 = 9
9 + -16x + -4x2 = -9 + 16x + 4x2 + 9 + -16x + -4x2

Reorder the terms:
9 + -16x + -4x2 = -9 + 9 + 16x + -16x + 4x2 + -4x2

Combine like terms: -9 + 9 = 0
9 + -16x + -4x2 = 0 + 16x + -16x + 4x2 + -4x2
9 + -16x + -4x2 = 16x + -16x + 4x2 + -4x2

Combine like terms: 16x + -16x = 0
9 + -16x + -4x2 = 0 + 4x2 + -4x2
9 + -16x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
9 + -16x + -4x2 = 0

Factor a trinomial.
(1 + -2x)(9 + 2x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + 2x)' equal to zero and attempt to solve: Simplifying 9 + 2x = 0 Solving 9 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 2x = 0 + -9 2x = 0 + -9 Combine like terms: 0 + -9 = -9 2x = -9 Divide each side by '2'. x = -4.5 Simplifying x = -4.5

Solution

x = {0.5, -4.5}

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