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

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


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

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

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

Multiply (4 + 5x) * (5 + 3x)
(4(5 + 3x) + 5x * (5 + 3x)) = 0
((5 * 4 + 3x * 4) + 5x * (5 + 3x)) = 0
((20 + 12x) + 5x * (5 + 3x)) = 0
(20 + 12x + (5 * 5x + 3x * 5x)) = 0
(20 + 12x + (25x + 15x2)) = 0

Combine like terms: 12x + 25x = 37x
(20 + 37x + 15x2) = 0

Solving
20 + 37x + 15x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(5 + 3x)' equal to zero and attempt to solve: Simplifying 5 + 3x = 0 Solving 5 + 3x = 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 + 3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x = 0 + -5 3x = 0 + -5 Combine like terms: 0 + -5 = -5 3x = -5 Divide each side by '3'. x = -1.666666667 Simplifying x = -1.666666667

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 = {-1.666666667, -0.8}

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