5x(5x+4)=12

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Solution for 5x(5x+4)=12 equation:


Simplifying
5x(5x + 4) = 12

Reorder the terms:
5x(4 + 5x) = 12
(4 * 5x + 5x * 5x) = 12
(20x + 25x2) = 12

Solving
20x + 25x2 = 12

Solving for variable 'x'.

Reorder the terms:
-12 + 20x + 25x2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + 20x + 25x2 = 0

Factor a trinomial.
(-6 + -5x)(2 + -5x) = 0

Subproblem 1

Set the factor '(-6 + -5x)' equal to zero and attempt to solve: Simplifying -6 + -5x = 0 Solving -6 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -5x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -5x = 0 + 6 -5x = 0 + 6 Combine like terms: 0 + 6 = 6 -5x = 6 Divide each side by '-5'. x = -1.2 Simplifying x = -1.2

Subproblem 2

Set the factor '(2 + -5x)' equal to zero and attempt to solve: Simplifying 2 + -5x = 0 Solving 2 + -5x = 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 + -5x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5x = 0 + -2 -5x = 0 + -2 Combine like terms: 0 + -2 = -2 -5x = -2 Divide each side by '-5'. x = 0.4 Simplifying x = 0.4

Solution

x = {-1.2, 0.4}

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