x^2-15x+80=3x

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Solution for x^2-15x+80=3x equation:


Simplifying
x2 + -15x + 80 = 3x

Reorder the terms:
80 + -15x + x2 = 3x

Solving
80 + -15x + x2 = 3x

Solving for variable 'x'.

Reorder the terms:
80 + -15x + -3x + x2 = 3x + -3x

Combine like terms: -15x + -3x = -18x
80 + -18x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
80 + -18x + x2 = 0

Factor a trinomial.
(8 + -1x)(10 + -1x) = 0

Subproblem 1

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Subproblem 2

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Solution

x = {8, 10}

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