-45x^2+66x=-15

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Solution for -45x^2+66x=-15 equation:


Simplifying
-45x2 + 66x = -15

Reorder the terms:
66x + -45x2 = -15

Solving
66x + -45x2 = -15

Solving for variable 'x'.

Reorder the terms:
15 + 66x + -45x2 = -15 + 15

Combine like terms: -15 + 15 = 0
15 + 66x + -45x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + 22x + -15x2) = 0

Factor a trinomial.
3((5 + -3x)(1 + 5x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 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 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Subproblem 2

Set the factor '(1 + 5x)' equal to zero and attempt to solve: Simplifying 1 + 5x = 0 Solving 1 + 5x = 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 + 5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 5x = 0 + -1 5x = 0 + -1 Combine like terms: 0 + -1 = -1 5x = -1 Divide each side by '5'. x = -0.2 Simplifying x = -0.2

Solution

x = {1.666666667, -0.2}

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