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

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Solution for (8-x)(3x+5)=0 equation: 


Simplifying
(8 + -1x)(3x + 5) = 0

Reorder the terms:
(8 + -1x)(5 + 3x) = 0

Multiply (8 + -1x) * (5 + 3x)
(8(5 + 3x) + -1x * (5 + 3x)) = 0
((5 * 8 + 3x * 8) + -1x * (5 + 3x)) = 0
((40 + 24x) + -1x * (5 + 3x)) = 0
(40 + 24x + (5 * -1x + 3x * -1x)) = 0
(40 + 24x + (-5x + -3x2)) = 0

Combine like terms: 24x + -5x = 19x
(40 + 19x + -3x2) = 0

Solving
40 + 19x + -3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(8 + -1x)(5 + 3x) = 0


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

Simplifying
8 + -1x = 0

Solving
8 + -1x = 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 + -1x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1x = 0 + -8
-1x = 0 + -8

Combine like terms: 0 + -8 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

Subproblem 2
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
Solution
x = {8, -1.666666667}

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