(5x+7)(4x-3)=0

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Solution for (5x+7)(4x-3)=0 equation:


Simplifying
(5x + 7)(4x + -3) = 0

Reorder the terms:
(7 + 5x)(4x + -3) = 0

Reorder the terms:
(7 + 5x)(-3 + 4x) = 0

Multiply (7 + 5x) * (-3 + 4x)
(7(-3 + 4x) + 5x * (-3 + 4x)) = 0
((-3 * 7 + 4x * 7) + 5x * (-3 + 4x)) = 0
((-21 + 28x) + 5x * (-3 + 4x)) = 0
(-21 + 28x + (-3 * 5x + 4x * 5x)) = 0
(-21 + 28x + (-15x + 20x2)) = 0

Combine like terms: 28x + -15x = 13x
(-21 + 13x + 20x2) = 0

Solving
-21 + 13x + 20x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -5x)(3 + -4x) = 0


Subproblem 1
Set the factor '(-7 + -5x)' equal to zero and attempt to solve:

Simplifying
-7 + -5x = 0

Solving
-7 + -5x = 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 + -5x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -5x = 0 + 7
-5x = 0 + 7

Combine like terms: 0 + 7 = 7
-5x = 7

Divide each side by '-5'.
x = -1.4

Simplifying
x = -1.4

Subproblem 2
Set the factor '(3 + -4x)' equal to zero and attempt to solve:

Simplifying
3 + -4x = 0

Solving
3 + -4x = 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 + -4x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = 0 + -3
-4x = 0 + -3

Combine like terms: 0 + -3 = -3
-4x = -3

Divide each side by '-4'.
x = 0.75

Simplifying
x = 0.75
Solution
x = {-1.4, 0.75}

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