3x(5x+1)-2(5x+1)=

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Solution for 3x(5x+1)-2(5x+1)= equation: 


Simplifying
3x(5x + 1) + -2(5x + 1) = 0

Reorder the terms:
3x(1 + 5x) + -2(5x + 1) = 0
(1 * 3x + 5x * 3x) + -2(5x + 1) = 0
(3x + 15x2) + -2(5x + 1) = 0

Reorder the terms:
3x + 15x2 + -2(1 + 5x) = 0
3x + 15x2 + (1 * -2 + 5x * -2) = 0
3x + 15x2 + (-2 + -10x) = 0

Reorder the terms:
-2 + 3x + -10x + 15x2 = 0

Combine like terms: 3x + -10x = -7x
-2 + -7x + 15x2 = 0

Solving
-2 + -7x + 15x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -5x)(2 + -3x) = 0


Subproblem 1
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

Subproblem 2
Set the factor '(2 + -3x)' equal to zero and attempt to solve:

Simplifying
2 + -3x = 0

Solving
2 + -3x = 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 + -3x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -3x = 0 + -2
-3x = 0 + -2

Combine like terms: 0 + -2 = -2
-3x = -2

Divide each side by '-3'.
x = 0.6666666667

Simplifying
x = 0.6666666667
Solution
x = {-0.2, 0.6666666667}

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