(5x-1)(x+3)=9-14x

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Solution for (5x-1)(x+3)=9-14x equation:


Simplifying
(5x + -1)(x + 3) = 9 + -14x

Reorder the terms:
(-1 + 5x)(x + 3) = 9 + -14x

Reorder the terms:
(-1 + 5x)(3 + x) = 9 + -14x

Multiply (-1 + 5x) * (3 + x)
(-1(3 + x) + 5x * (3 + x)) = 9 + -14x
((3 * -1 + x * -1) + 5x * (3 + x)) = 9 + -14x
((-3 + -1x) + 5x * (3 + x)) = 9 + -14x
(-3 + -1x + (3 * 5x + x * 5x)) = 9 + -14x
(-3 + -1x + (15x + 5x2)) = 9 + -14x

Combine like terms: -1x + 15x = 14x
(-3 + 14x + 5x2) = 9 + -14x

Solving
-3 + 14x + 5x2 = 9 + -14x

Solving for variable 'x'.

Reorder the terms:
-3 + -9 + 14x + 14x + 5x2 = 9 + -14x + -9 + 14x

Combine like terms: -3 + -9 = -12
-12 + 14x + 14x + 5x2 = 9 + -14x + -9 + 14x

Combine like terms: 14x + 14x = 28x
-12 + 28x + 5x2 = 9 + -14x + -9 + 14x

Reorder the terms:
-12 + 28x + 5x2 = 9 + -9 + -14x + 14x

Combine like terms: 9 + -9 = 0
-12 + 28x + 5x2 = 0 + -14x + 14x
-12 + 28x + 5x2 = -14x + 14x

Combine like terms: -14x + 14x = 0
-12 + 28x + 5x2 = 0

Factor a trinomial.
(-6 + -1x)(2 + -5x) = 0

Subproblem 1

Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

Subproblem 2

Set the factor '(2 + -5x)' equal to zero and attempt to solve: Simplifying 2 + -5x = 0 Solving 2 + -5x = 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 + -5x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5x = 0 + -2 -5x = 0 + -2 Combine like terms: 0 + -2 = -2 -5x = -2 Divide each side by '-5'. x = 0.4 Simplifying x = 0.4

Solution

x = {-6, 0.4}

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