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

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


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

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

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

Multiply (7 + 3x) * (-10 + 3x)
(7(-10 + 3x) + 3x * (-10 + 3x)) = 0
((-10 * 7 + 3x * 7) + 3x * (-10 + 3x)) = 0
((-70 + 21x) + 3x * (-10 + 3x)) = 0
(-70 + 21x + (-10 * 3x + 3x * 3x)) = 0
(-70 + 21x + (-30x + 9x2)) = 0

Combine like terms: 21x + -30x = -9x
(-70 + -9x + 9x2) = 0

Solving
-70 + -9x + 9x2 = 0

Solving for variable 'x'.

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


Subproblem 1
Set the factor '(-7 + -3x)' equal to zero and attempt to solve:

Simplifying
-7 + -3x = 0

Solving
-7 + -3x = 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 + -3x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -3x = 0 + 7
-3x = 0 + 7

Combine like terms: 0 + 7 = 7
-3x = 7

Divide each side by '-3'.
x = -2.333333333

Simplifying
x = -2.333333333

Subproblem 2
Set the factor '(10 + -3x)' equal to zero and attempt to solve:

Simplifying
10 + -3x = 0

Solving
10 + -3x = 0

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

Add '-10' to each side of the equation.
10 + -10 + -3x = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -3x = 0 + -10
-3x = 0 + -10

Combine like terms: 0 + -10 = -10
-3x = -10

Divide each side by '-3'.
x = 3.333333333

Simplifying
x = 3.333333333
Solution
x = {-2.333333333, 3.333333333}

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