80=-10x^2+60x

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Solution for 80=-10x^2+60x equation:


Simplifying
80 = -10x2 + 60x

Reorder the terms:
80 = 60x + -10x2

Solving
80 = 60x + -10x2

Solving for variable 'x'.

Reorder the terms:
80 + -60x + 10x2 = 60x + -60x + -10x2 + 10x2

Combine like terms: 60x + -60x = 0
80 + -60x + 10x2 = 0 + -10x2 + 10x2
80 + -60x + 10x2 = -10x2 + 10x2

Combine like terms: -10x2 + 10x2 = 0
80 + -60x + 10x2 = 0

Factor out the Greatest Common Factor (GCF), '10'.
10(8 + -6x + x2) = 0

Factor a trinomial.
10((2 + -1x)(4 + -1x)) = 0

Ignore the factor 10.

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 '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {2, 4}

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