(3x-5)(10x+7)=0

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Solution for (3x-5)(10x+7)=0 equation: 


Simplifying
(3x + -5)(10x + 7) = 0

Reorder the terms:
(-5 + 3x)(10x + 7) = 0

Reorder the terms:
(-5 + 3x)(7 + 10x) = 0

Multiply (-5 + 3x) * (7 + 10x)
(-5(7 + 10x) + 3x * (7 + 10x)) = 0
((7 * -5 + 10x * -5) + 3x * (7 + 10x)) = 0
((-35 + -50x) + 3x * (7 + 10x)) = 0
(-35 + -50x + (7 * 3x + 10x * 3x)) = 0
(-35 + -50x + (21x + 30x2)) = 0

Combine like terms: -50x + 21x = -29x
(-35 + -29x + 30x2) = 0

Solving
-35 + -29x + 30x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -10x)(5 + -3x) = 0


Subproblem 1
Set the factor '(-7 + -10x)' equal to zero and attempt to solve:

Simplifying
-7 + -10x = 0

Solving
-7 + -10x = 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 + -10x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -10x = 0 + 7
-10x = 0 + 7

Combine like terms: 0 + 7 = 7
-10x = 7

Divide each side by '-10'.
x = -0.7

Simplifying
x = -0.7

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 = {-0.7, 1.666666667}

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