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

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


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

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

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

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

Combine like terms: -45x + 16x = -29x
(-20 + -29x + 36x2) = 0

Solving
-20 + -29x + 36x2 = 0

Solving for variable 'x'.

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

Solution

x = {-0.4444444444, 1.25}

See similar equations:

| 3z+4=25-2z | | 23y(y-4)(y-13)=0 | | 2(3n-5)=(4n+7)+6 | | 42h+90+195=390 | | 8x+4-5x= | | 2(3(4+x)+x)+x=51 | | 33-12x+25x=6 | | 3*9x*27x=1 | | 20=a-b | | 3x*9x*27x=1 | | 7p-10=2+5(p+5) | | 13/7=65/t | | 20=b-a | | 0.18(y-3)+0.12y=0.14y-0.03(50) | | (3x+5w-5)(5x+w)= | | -2q-8=q+73 | | x+8y-2z=3 | | 2/2=0 | | lx+3l=lx-2l | | -1/2*-7/5 | | -4c-4=c+204 | | 6.5(5.076923077+0.1538461538y)+-1y=33 | | 556=100 | | -9*7/3 | | 5+7x+(3x-8)= | | 4+29x-16x^2=0 | | 2t/5^3=0 | | 2/9*-1/2 | | 0.6-2=0.9+0.25x | | 6.5x-1y=33 | | n-149=-6n-9 | | 10y+10=4y-4 |

Equations solver categories