(9x-7y)(9x+5y)=0

Simple and best practice solution for (9x-7y)(9x+5y)=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-7y)(9x+5y)=0 equation: 


Simplifying
(9x + -7y)(9x + 5y) = 0

Multiply (9x + -7y) * (9x + 5y)
(9x * (9x + 5y) + -7y * (9x + 5y)) = 0
((9x * 9x + 5y * 9x) + -7y * (9x + 5y)) = 0

Reorder the terms:
((45xy + 81x2) + -7y * (9x + 5y)) = 0
((45xy + 81x2) + -7y * (9x + 5y)) = 0
(45xy + 81x2 + (9x * -7y + 5y * -7y)) = 0
(45xy + 81x2 + (-63xy + -35y2)) = 0

Reorder the terms:
(45xy + -63xy + 81x2 + -35y2) = 0

Combine like terms: 45xy + -63xy = -18xy
(-18xy + 81x2 + -35y2) = 0

Solving
-18xy + 81x2 + -35y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(9x + -7y)(9x + 5y) = 0


Subproblem 1
Set the factor '(9x + -7y)' equal to zero and attempt to solve:

Simplifying
9x + -7y = 0

Solving
9x + -7y = 0

Move all terms containing x to the left, all other terms to the right.

Add '7y' to each side of the equation.
9x + -7y + 7y = 0 + 7y

Combine like terms: -7y + 7y = 0
9x + 0 = 0 + 7y
9x = 0 + 7y
Remove the zero:
9x = 7y

Divide each side by '9'.
x = 0.7777777778y

Simplifying
x = 0.7777777778y

Subproblem 2
Set the factor '(9x + 5y)' equal to zero and attempt to solve:

Simplifying
9x + 5y = 0

Solving
9x + 5y = 0

Move all terms containing x to the left, all other terms to the right.

Add '-5y' to each side of the equation.
9x + 5y + -5y = 0 + -5y

Combine like terms: 5y + -5y = 0
9x + 0 = 0 + -5y
9x = 0 + -5y
Remove the zero:
9x = -5y

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

Simplifying
x = -0.5555555556y
Solution
x = {0.7777777778y, -0.5555555556y}

See similar equations:

| 3(4-4x)=48 | | 3x*4x+5x=123 | | 4x-6(8-x)=10 | | -4+5x=7x-12 | | 7X+4+2X-1+X=103 | | 84-3x=14-10x | | 97.8061x^4-2.5x^3-2.5x^2-2.5x-102.5=0 | | 3x+(-8)=29 | | y=25-(x-8)^2/4 | | 5p-2=6p+4 | | -0.3+x=0.588 | | 97.8061x^2-5x-105=0 | | y=(12+9)6 | | x^2-5x-105=0 | | 64=x-1/5x | | 22z^2-17z+3=0 | | a+2+a+2+2b=ab | | x=2x(9+x) | | ab-2a-2b=4 | | 6x^2=45 | | 21m^2-58m-40=0 | | 16w^2+6w-1=0 | | 9s^2-9s-4=0 | | 6x=14+-80 | | 18w-33=7y | | 6x-2+6=-8 | | 35b^2+31b+6=0 | | 1+6x+2=-21 | | 7x-5=3x+8 | | 30a^2-17a+2=0 | | k+15=9-4k | | .5x+.2y=c |

Equations solver categories