(15x^2+23x-28)=0

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Solution for (15x^2+23x-28)=0 equation:


Simplifying
(15x2 + 23x + -28) = 0

Reorder the terms:
(-28 + 23x + 15x2) = 0

Remove parenthesis around (-28 + 23x + 15x2)
-28 + 23x + 15x2 = 0

Solving
-28 + 23x + 15x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -3x)(4 + -5x) = 0

Subproblem 1

Set the factor '(-7 + -3x)' equal to zero and attempt to solve: Simplifying -7 + -3x = 0 Solving -7 + -3x = 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 + -3x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -3x = 0 + 7 -3x = 0 + 7 Combine like terms: 0 + 7 = 7 -3x = 7 Divide each side by '-3'. x = -2.333333333 Simplifying x = -2.333333333

Subproblem 2

Set the factor '(4 + -5x)' equal to zero and attempt to solve: Simplifying 4 + -5x = 0 Solving 4 + -5x = 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 + -5x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5x = 0 + -4 -5x = 0 + -4 Combine like terms: 0 + -4 = -4 -5x = -4 Divide each side by '-5'. x = 0.8 Simplifying x = 0.8

Solution

x = {-2.333333333, 0.8}

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