(5x+1)(3x+4)=

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Solution for (5x+1)(3x+4)= equation: 


Simplifying
(5x + 1)(3x + 4) = 0

Reorder the terms:
(1 + 5x)(3x + 4) = 0

Reorder the terms:
(1 + 5x)(4 + 3x) = 0

Multiply (1 + 5x) * (4 + 3x)
(1(4 + 3x) + 5x * (4 + 3x)) = 0
((4 * 1 + 3x * 1) + 5x * (4 + 3x)) = 0
((4 + 3x) + 5x * (4 + 3x)) = 0
(4 + 3x + (4 * 5x + 3x * 5x)) = 0
(4 + 3x + (20x + 15x2)) = 0

Combine like terms: 3x + 20x = 23x
(4 + 23x + 15x2) = 0

Solving
4 + 23x + 15x2 = 0

Solving for variable 'x'.

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


Subproblem 1
Set the factor '(4 + 3x)' equal to zero and attempt to solve:

Simplifying
4 + 3x = 0

Solving
4 + 3x = 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 + 3x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 3x = 0 + -4
3x = 0 + -4

Combine like terms: 0 + -4 = -4
3x = -4

Divide each side by '3'.
x = -1.333333333

Simplifying
x = -1.333333333

Subproblem 2
Set the factor '(1 + 5x)' equal to zero and attempt to solve:

Simplifying
1 + 5x = 0

Solving
1 + 5x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + 5x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 5x = 0 + -1
5x = 0 + -1

Combine like terms: 0 + -1 = -1
5x = -1

Divide each side by '5'.
x = -0.2

Simplifying
x = -0.2
Solution
x = {-1.333333333, -0.2}

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