(9x-2)(x+4)=0

Simple and best practice solution for (9x-2)(x+4)=0 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 (9x-2)(x+4)=0 equation:


Simplifying
(9x + -2)(x + 4) = 0

Reorder the terms:
(-2 + 9x)(x + 4) = 0

Reorder the terms:
(-2 + 9x)(4 + x) = 0

Multiply (-2 + 9x) * (4 + x)
(-2(4 + x) + 9x * (4 + x)) = 0
((4 * -2 + x * -2) + 9x * (4 + x)) = 0
((-8 + -2x) + 9x * (4 + x)) = 0
(-8 + -2x + (4 * 9x + x * 9x)) = 0
(-8 + -2x + (36x + 9x2)) = 0

Combine like terms: -2x + 36x = 34x
(-8 + 34x + 9x2) = 0

Solving
-8 + 34x + 9x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-4 + -1x)(2 + -9x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(2 + -9x)' equal to zero and attempt to solve: Simplifying 2 + -9x = 0 Solving 2 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -9x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -9x = 0 + -2 -9x = 0 + -2 Combine like terms: 0 + -2 = -2 -9x = -2 Divide each side by '-9'. x = 0.2222222222 Simplifying x = 0.2222222222

Solution

x = {-4, 0.2222222222}

See similar equations:

| 93-4x=8x-21 | | 2x^2-4x=-7 | | -16x^2+50x=0 | | x^3+3x^2+x=-3 | | 213-5x=40x+23 | | 10-9x=103-30x | | x-2(2x+3)=12 | | -16t^2+225=0 | | -16t^2+4t=0 | | 4x^2+8x-140=0 | | 14p+p^2=51 | | z^2=18-7z | | B^2-4b-12=0 | | 24x=0 | | r^4-r^2=12 | | 2n^2-n-6=0 | | 2n^2-n-6=o | | d^2-3d=70 | | 3(w-7)-1=-2(-5w+2)-3w | | 9x+x^2=22 | | y^2+9=-10y | | p^2-19p-42=0 | | 4(3m-5)=6m-14 | | 9y^2+5y-4= | | x^2(x-7)(4x-1)=0 | | 2x^3+2x^2-22x+30=0 | | x+2-5+(-6)= | | 3X+2=2X+2 | | 3y-2x+12=0 | | 4x*2= | | 3z-18=-24+2z | | 2m-12=-12+4m |

Equations solver categories