20x-x^2=64

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Solution for 20x-x^2=64 equation:


Simplifying
20x + -1x2 = 64

Solving
20x + -1x2 = 64

Solving for variable 'x'.

Reorder the terms:
-64 + 20x + -1x2 = 64 + -64

Combine like terms: 64 + -64 = 0
-64 + 20x + -1x2 = 0

Factor a trinomial.
(-16 + x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-16 + x)' equal to zero and attempt to solve: Simplifying -16 + x = 0 Solving -16 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 0 + 16 Combine like terms: -16 + 16 = 0 0 + x = 0 + 16 x = 0 + 16 Combine like terms: 0 + 16 = 16 x = 16 Simplifying x = 16

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 = {16, 4}

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