(-4x+10)(-4x-5)=

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Solution for (-4x+10)(-4x-5)= equation: 


Simplifying
(-4x + 10)(-4x + -5) = 0

Reorder the terms:
(10 + -4x)(-4x + -5) = 0

Reorder the terms:
(10 + -4x)(-5 + -4x) = 0

Multiply (10 + -4x) * (-5 + -4x)
(10(-5 + -4x) + -4x * (-5 + -4x)) = 0
((-5 * 10 + -4x * 10) + -4x * (-5 + -4x)) = 0
((-50 + -40x) + -4x * (-5 + -4x)) = 0
(-50 + -40x + (-5 * -4x + -4x * -4x)) = 0
(-50 + -40x + (20x + 16x2)) = 0

Combine like terms: -40x + 20x = -20x
(-50 + -20x + 16x2) = 0

Solving
-50 + -20x + 16x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-25 + -10x + 8x2) = 0

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

Ignore the factor 2.

Subproblem 1
Set the factor '(-5 + -4x)' equal to zero and attempt to solve:

Simplifying
-5 + -4x = 0

Solving
-5 + -4x = 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 + -4x = 0 + 5

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

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

Divide each side by '-4'.
x = -1.25

Simplifying
x = -1.25

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 = {-1.25, 2.5}

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