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

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


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

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

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

Multiply (4 + 9x) * (-5 + 9x)
(4(-5 + 9x) + 9x * (-5 + 9x)) = 0
((-5 * 4 + 9x * 4) + 9x * (-5 + 9x)) = 0
((-20 + 36x) + 9x * (-5 + 9x)) = 0
(-20 + 36x + (-5 * 9x + 9x * 9x)) = 0
(-20 + 36x + (-45x + 81x2)) = 0

Combine like terms: 36x + -45x = -9x
(-20 + -9x + 81x2) = 0

Solving
-20 + -9x + 81x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-4 + -9x)(5 + -9x) = 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 + -9x)' equal to zero and attempt to solve:

Simplifying
5 + -9x = 0

Solving
5 + -9x = 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 + -9x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -9x = 0 + -5
-9x = 0 + -5

Combine like terms: 0 + -5 = -5
-9x = -5

Divide each side by '-9'.
x = 0.5555555556

Simplifying
x = 0.5555555556
Solution
x = {-0.4444444444, 0.5555555556}

See similar equations:

| 3*x/5-0.5=1.9 | | 3*x-0.5=1.9 | | -2r^2-14r-24= | | 5x+100=6x-50 | | e^4z+1=0 | | (7x+4)(5x-2)= | | R^2-r+43= | | 3x^3+9x^2+6x^3= | | 5x-6(-3)=8 | | (3+2i)+(-1+3i)= | | (9a)(2b)= | | 2+i+1+i-(2+3i+5-2i)= | | 5+7i+5-7i= | | 4m-7m-3n-3m= | | 4x-(9x-12)= | | -49=5x-4 | | 1+3i+2+5i-(3-2i)= | | 5x-45y=-40 | | (x+yi)(3-4i)=25 | | (-2xy^2)(-4x3y)/(-6xy^3)(xy) | | (x+y(25))(3-4(25))=25 | | (x+yi)(3-4i)=i | | 0.75p*3=5.88 | | 3(80-9x)= | | n(10-0.02n)=-0.02n^2+10n | | 3X+17X^4=52 | | n(10-0.02n)=(-0.02n^2)+10n | | x^2+2x+8=56 | | H(T)=16T^2+130T+9 | | 50x+3=2 | | T/(-8)=-80 | | 65=35-5(x-4) |

Equations solver categories