3x(15-x)=150

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Solution for 3x(15-x)=150 equation:


Simplifying
3x(15 + -1x) = 150
(15 * 3x + -1x * 3x) = 150
(45x + -3x2) = 150

Solving
45x + -3x2 = 150

Solving for variable 'x'.

Reorder the terms:
-150 + 45x + -3x2 = 150 + -150

Combine like terms: 150 + -150 = 0
-150 + 45x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-50 + 15x + -1x2) = 0

Factor a trinomial.
3((-10 + x)(5 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-10 + x)' equal to zero and attempt to solve: Simplifying -10 + x = 0 Solving -10 + x = 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 + x = 0 + 10 Combine like terms: -10 + 10 = 0 0 + x = 0 + 10 x = 0 + 10 Combine like terms: 0 + 10 = 10 x = 10 Simplifying x = 10

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {10, 5}

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