(3-5x)(2x+7)=0

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Solution for (3-5x)(2x+7)=0 equation: 


Simplifying
(3 + -5x)(2x + 7) = 0

Reorder the terms:
(3 + -5x)(7 + 2x) = 0

Multiply (3 + -5x) * (7 + 2x)
(3(7 + 2x) + -5x * (7 + 2x)) = 0
((7 * 3 + 2x * 3) + -5x * (7 + 2x)) = 0
((21 + 6x) + -5x * (7 + 2x)) = 0
(21 + 6x + (7 * -5x + 2x * -5x)) = 0
(21 + 6x + (-35x + -10x2)) = 0

Combine like terms: 6x + -35x = -29x
(21 + -29x + -10x2) = 0

Solving
21 + -29x + -10x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + -5x)(7 + 2x) = 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 '(7 + 2x)' equal to zero and attempt to solve:

Simplifying
7 + 2x = 0

Solving
7 + 2x = 0

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

Add '-7' to each side of the equation.
7 + -7 + 2x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 2x = 0 + -7
2x = 0 + -7

Combine like terms: 0 + -7 = -7
2x = -7

Divide each side by '2'.
x = -3.5

Simplifying
x = -3.5
Solution
x = {0.6, -3.5}

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