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

Simple and best practice solution for (4x-4)(5x+4)= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

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


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

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

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

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

Combine like terms: -20x + 16x = -4x
(-16 + -4x + 20x2) = 0

Solving
-16 + -4x + 20x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-4 + -1x + 5x2) = 0

Factor a trinomial.
4((-4 + -5x)(1 + -1x)) = 0

Ignore the factor 4.

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 '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-0.8, 1}

See similar equations:

| (13x+14)(6x-5)=0 | | 3x^2+x^2=23104 | | x(x-19)=0 | | 6m+5n-8(4m-3n)= | | 81a^2-99ab+28b^2= | | y(2y-8)9(2Y+6)=0 | | 68*31x=26*87x | | 68*31x=700*852x | | 15a-15= | | -4n+1=1 | | 3v-5=-26 | | -3x+1=-11 | | 26x^2+40x+16= | | 12x^2+x-35=0 | | 2345*4577x=4567*1234x | | -4n-2=-2 | | -3x+6+5=-4 | | 468*5795x=79 | | -n^2+2n+63=0 | | x/2-1=x/5+2 | | 147x*289=1902 | | 147*289=1902 | | -2x+1=13 | | (7x+4)+(2x+5)=180 | | 9n^2-30n+25=0 | | y^2-4y-21= | | -3n-1=5 | | 9(3x+1)=4x-5x | | -y/4.9=-9.8 | | -n/12=4 | | 34x*56=47 | | x/2=-34 |

Equations solver categories