(3x+8)(5x-2)=

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Solution for (3x+8)(5x-2)= equation: 


Simplifying
(3x + 8)(5x + -2) = 0

Reorder the terms:
(8 + 3x)(5x + -2) = 0

Reorder the terms:
(8 + 3x)(-2 + 5x) = 0

Multiply (8 + 3x) * (-2 + 5x)
(8(-2 + 5x) + 3x * (-2 + 5x)) = 0
((-2 * 8 + 5x * 8) + 3x * (-2 + 5x)) = 0
((-16 + 40x) + 3x * (-2 + 5x)) = 0
(-16 + 40x + (-2 * 3x + 5x * 3x)) = 0
(-16 + 40x + (-6x + 15x2)) = 0

Combine like terms: 40x + -6x = 34x
(-16 + 34x + 15x2) = 0

Solving
-16 + 34x + 15x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-8 + -3x)(2 + -5x) = 0


Subproblem 1
Set the factor '(-8 + -3x)' equal to zero and attempt to solve:

Simplifying
-8 + -3x = 0

Solving
-8 + -3x = 0

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

Add '8' to each side of the equation.
-8 + 8 + -3x = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -3x = 0 + 8
-3x = 0 + 8

Combine like terms: 0 + 8 = 8
-3x = 8

Divide each side by '-3'.
x = -2.666666667

Simplifying
x = -2.666666667

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

Simplifying
2 + -5x = 0

Solving
2 + -5x = 0

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

Add '-2' to each side of the equation.
2 + -2 + -5x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -5x = 0 + -2
-5x = 0 + -2

Combine like terms: 0 + -2 = -2
-5x = -2

Divide each side by '-5'.
x = 0.4

Simplifying
x = 0.4
Solution
x = {-2.666666667, 0.4}

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