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

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


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

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

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

Multiply (-5 + 2x) * (-4 + 5x)
(-5(-4 + 5x) + 2x * (-4 + 5x)) = 0
((-4 * -5 + 5x * -5) + 2x * (-4 + 5x)) = 0
((20 + -25x) + 2x * (-4 + 5x)) = 0
(20 + -25x + (-4 * 2x + 5x * 2x)) = 0
(20 + -25x + (-8x + 10x2)) = 0

Combine like terms: -25x + -8x = -33x
(20 + -33x + 10x2) = 0

Solving
20 + -33x + 10x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(4 + -5x)(5 + -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 '(5 + -2x)' equal to zero and attempt to solve:

Simplifying
5 + -2x = 0

Solving
5 + -2x = 0

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

Add '-5' to each side of the equation.
5 + -5 + -2x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -2x = 0 + -5
-2x = 0 + -5

Combine like terms: 0 + -5 = -5
-2x = -5

Divide each side by '-2'.
x = 2.5

Simplifying
x = 2.5
Solution
x = {0.8, 2.5}

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