(5x-4)(2x-7)=

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Solution for (5x-4)(2x-7)= equation: 


Simplifying
(5x + -4)(2x + -7) = 0

Reorder the terms:
(-4 + 5x)(2x + -7) = 0

Reorder the terms:
(-4 + 5x)(-7 + 2x) = 0

Multiply (-4 + 5x) * (-7 + 2x)
(-4(-7 + 2x) + 5x * (-7 + 2x)) = 0
((-7 * -4 + 2x * -4) + 5x * (-7 + 2x)) = 0
((28 + -8x) + 5x * (-7 + 2x)) = 0
(28 + -8x + (-7 * 5x + 2x * 5x)) = 0
(28 + -8x + (-35x + 10x2)) = 0

Combine like terms: -8x + -35x = -43x
(28 + -43x + 10x2) = 0

Solving
28 + -43x + 10x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(4 + -5x)(7 + -2x) = 0


Subproblem 1
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

Subproblem 2
Set the factor '(7 + -2x)' equal to zero and attempt to solve:

Simplifying
7 + -2x = 0

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

Combine like terms: 7 + -7 = 0
0 + -2x = 0 + -7
-2x = 0 + -7

Combine like terms: 0 + -7 = -7
-2x = -7

Divide each side by '-2'.
x = 3.5

Simplifying
x = 3.5
Solution
x = {0.8, 3.5}

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