(14x+9)(5x-4)=0

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Solution for (14x+9)(5x-4)=0 equation: 


Simplifying
(14x + 9)(5x + -4) = 0

Reorder the terms:
(9 + 14x)(5x + -4) = 0

Reorder the terms:
(9 + 14x)(-4 + 5x) = 0

Multiply (9 + 14x) * (-4 + 5x)
(9(-4 + 5x) + 14x * (-4 + 5x)) = 0
((-4 * 9 + 5x * 9) + 14x * (-4 + 5x)) = 0
((-36 + 45x) + 14x * (-4 + 5x)) = 0
(-36 + 45x + (-4 * 14x + 5x * 14x)) = 0
(-36 + 45x + (-56x + 70x2)) = 0

Combine like terms: 45x + -56x = -11x
(-36 + -11x + 70x2) = 0

Solving
-36 + -11x + 70x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-9 + -14x)(4 + -5x) = 0


Subproblem 1
Set the factor '(-9 + -14x)' equal to zero and attempt to solve:

Simplifying
-9 + -14x = 0

Solving
-9 + -14x = 0

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

Add '9' to each side of the equation.
-9 + 9 + -14x = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -14x = 0 + 9
-14x = 0 + 9

Combine like terms: 0 + 9 = 9
-14x = 9

Divide each side by '-14'.
x = -0.6428571429

Simplifying
x = -0.6428571429

Subproblem 2
Set the factor '(4 + -5x)' equal to zero and attempt to solve:

Simplifying
4 + -5x = 0

Solving
4 + -5x = 0

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

Add '-4' to each side of the equation.
4 + -4 + -5x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -5x = 0 + -4
-5x = 0 + -4

Combine like terms: 0 + -4 = -4
-5x = -4

Divide each side by '-5'.
x = 0.8

Simplifying
x = 0.8
Solution
x = {-0.6428571429, 0.8}

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