(x+5)(x-4)=

Simple and best practice solution for (x+5)(x-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 (x+5)(x-4)= equation: 


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

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

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

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

Combine like terms: 5x + -4x = 1x
(-20 + 1x + x2) = 0

Solving
-20 + 1x + x2 = 0

Solving for variable 'x'.

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


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

Simplifying
-5 + -1x = 0

Solving
-5 + -1x = 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 + -1x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1x = 0 + 5
-1x = 0 + 5

Combine like terms: 0 + 5 = 5
-1x = 5

Divide each side by '-1'.
x = -5

Simplifying
x = -5

Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve:

Simplifying
4 + -1x = 0

Solving
4 + -1x = 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 + -1x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 0 + -4
-1x = 0 + -4

Combine like terms: 0 + -4 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4
Solution
x = {-5, 4}

See similar equations:

| (x-9)(x+2)= | | (x-9)(x+3)= | | 3+0-15+5= | | (x-5)(x-1)= | | (x+6)(x+8)= | | 3+0-15=5 | | (x-8)(x-9)= | | -9y=5(0)+2 | | (x-3)(x-5)= | | -8-3-11= | | (x+2)(x+7)= | | 7t=-49 | | (x-9)(x-2)= | | 4-3-2-5= | | 10+-5= | | 10+-4= | | -10+-4= | | 27=h+(-8) | | 12+-3= | | -4-9= | | 102=p-(-130) | | 7(0)-4y=3 | | 7-11= | | z+(-22)=-96 | | 15-29+50= | | 4+t=16 | | -12+31-13= | | m-11=33 | | -4+27+-52+2= | | 9=w+(-8) | | x+23=55 | | 7x-9=3x-45 |

Equations solver categories