25x^2-5(5x)-84=

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Solution for 25x^2-5(5x)-84= equation:


Simplifying
25x2 + -5(5x) + -84 = 0

Remove parenthesis around (5x)
25x2 + -5 * 5x + -84 = 0

Multiply -5 * 5
25x2 + -25x + -84 = 0

Reorder the terms:
-84 + -25x + 25x2 = 0

Solving
-84 + -25x + 25x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -5x)(12 + -5x) = 0

Subproblem 1

Set the factor '(-7 + -5x)' equal to zero and attempt to solve: Simplifying -7 + -5x = 0 Solving -7 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -5x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -5x = 0 + 7 -5x = 0 + 7 Combine like terms: 0 + 7 = 7 -5x = 7 Divide each side by '-5'. x = -1.4 Simplifying x = -1.4

Subproblem 2

Set the factor '(12 + -5x)' equal to zero and attempt to solve: Simplifying 12 + -5x = 0 Solving 12 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -5x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -5x = 0 + -12 -5x = 0 + -12 Combine like terms: 0 + -12 = -12 -5x = -12 Divide each side by '-5'. x = 2.4 Simplifying x = 2.4

Solution

x = {-1.4, 2.4}

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