(5x-4)(9x+4)=0

Simple and best practice solution for (5x-4)(9x+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 (5x-4)(9x+4)=0 equation:


Simplifying
(5x + -4)(9x + 4) = 0

Reorder the terms:
(-4 + 5x)(9x + 4) = 0

Reorder the terms:
(-4 + 5x)(4 + 9x) = 0

Multiply (-4 + 5x) * (4 + 9x)
(-4(4 + 9x) + 5x * (4 + 9x)) = 0
((4 * -4 + 9x * -4) + 5x * (4 + 9x)) = 0
((-16 + -36x) + 5x * (4 + 9x)) = 0
(-16 + -36x + (4 * 5x + 9x * 5x)) = 0
(-16 + -36x + (20x + 45x2)) = 0

Combine like terms: -36x + 20x = -16x
(-16 + -16x + 45x2) = 0

Solving
-16 + -16x + 45x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-4 + -9x)(4 + -5x) = 0

Subproblem 1

Set the factor '(-4 + -9x)' equal to zero and attempt to solve: Simplifying -4 + -9x = 0 Solving -4 + -9x = 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 + -9x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -9x = 0 + 4 -9x = 0 + 4 Combine like terms: 0 + 4 = 4 -9x = 4 Divide each side by '-9'. x = -0.4444444444 Simplifying x = -0.4444444444

Subproblem 2

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

Solution

x = {-0.4444444444, 0.8}

See similar equations:

| x^2+1.8x-0.14868=0 | | 0.1(x+30)+0.1x=4 | | 698=2(w+23)+2w | | x^3+64i=0 | | 0.8x+8.3=3.1 | | 2x^2+x-27=0 | | u^2-4w+4=0 | | 2x+6y/20x+9y=69 | | 3=28-14u-6u | | 36+12t-12=-6 | | 3+2x/7+5-x/2=17/14 | | y^3z^6/y^7z | | 5x-7(x+3)=-2x+12 | | -9x+15y=0 | | -[8z-(17z+4)]=4+(8z+2) | | 3x=4(x-4)+4 | | 53.17x^2-220.68x+220.68=0 | | y=-1.7*4.5+4.5 | | 2x-2=3x+3 | | f/-2-9=13 | | y=-1.7x+4.5 | | 11+11-x=2 | | 0=x^2-x+20 | | 4x-4=2(x-1) | | (-2x+1)(4-3x)= | | 45-t=13 | | y=-1.7*1.7+4.5 | | 4(3y-1)=6(3y-y) | | 2X+4=3X-9 | | (0.5x-5)=-6(-x+10) | | z^6y/z^5y^4 | | 2X+4=3X+9 |

Equations solver categories