(5x+3)(x-4)=

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Solution for (5x+3)(x-4)= equation:


Simplifying
(5x + 3)(x + -4) = 0

Reorder the terms:
(3 + 5x)(x + -4) = 0

Reorder the terms:
(3 + 5x)(-4 + x) = 0

Multiply (3 + 5x) * (-4 + x)
(3(-4 + x) + 5x * (-4 + x)) = 0
((-4 * 3 + x * 3) + 5x * (-4 + x)) = 0
((-12 + 3x) + 5x * (-4 + x)) = 0
(-12 + 3x + (-4 * 5x + x * 5x)) = 0
(-12 + 3x + (-20x + 5x2)) = 0

Combine like terms: 3x + -20x = -17x
(-12 + -17x + 5x2) = 0

Solving
-12 + -17x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-3 + -5x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-3 + -5x)' equal to zero and attempt to solve: Simplifying -3 + -5x = 0 Solving -3 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -5x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -5x = 0 + 3 -5x = 0 + 3 Combine like terms: 0 + 3 = 3 -5x = 3 Divide each side by '-5'. x = -0.6 Simplifying x = -0.6

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 = {-0.6, 4}

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