5x^2-16x+15=4x-5

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Solution for 5x^2-16x+15=4x-5 equation:


Simplifying
5x2 + -16x + 15 = 4x + -5

Reorder the terms:
15 + -16x + 5x2 = 4x + -5

Reorder the terms:
15 + -16x + 5x2 = -5 + 4x

Solving
15 + -16x + 5x2 = -5 + 4x

Solving for variable 'x'.

Reorder the terms:
15 + 5 + -16x + -4x + 5x2 = -5 + 4x + 5 + -4x

Combine like terms: 15 + 5 = 20
20 + -16x + -4x + 5x2 = -5 + 4x + 5 + -4x

Combine like terms: -16x + -4x = -20x
20 + -20x + 5x2 = -5 + 4x + 5 + -4x

Reorder the terms:
20 + -20x + 5x2 = -5 + 5 + 4x + -4x

Combine like terms: -5 + 5 = 0
20 + -20x + 5x2 = 0 + 4x + -4x
20 + -20x + 5x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -20x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(4 + -4x + x2) = 0

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

Ignore the factor 5.

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {2, 2}

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