(7xy-4)(4xy+7)=

Simple and best practice solution for (7xy-4)(4xy+7)= 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 (7xy-4)(4xy+7)= equation: 


Simplifying
(7xy + -4)(4xy + 7) = 0

Reorder the terms:
(-4 + 7xy)(4xy + 7) = 0

Reorder the terms:
(-4 + 7xy)(7 + 4xy) = 0

Multiply (-4 + 7xy) * (7 + 4xy)
(-4(7 + 4xy) + 7xy * (7 + 4xy)) = 0
((7 * -4 + 4xy * -4) + 7xy * (7 + 4xy)) = 0
((-28 + -16xy) + 7xy * (7 + 4xy)) = 0
(-28 + -16xy + (7 * 7xy + 4xy * 7xy)) = 0
(-28 + -16xy + (49xy + 28x2y2)) = 0

Combine like terms: -16xy + 49xy = 33xy
(-28 + 33xy + 28x2y2) = 0

Solving
-28 + 33xy + 28x2y2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -4xy)(4 + -7xy) = 0


Subproblem 1
Set the factor '(-7 + -4xy)' equal to zero and attempt to solve:

Simplifying
-7 + -4xy = 0

Solving
-7 + -4xy = 0

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

Add '7' to each side of the equation.
-7 + 7 + -4xy = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -4xy = 0 + 7
-4xy = 0 + 7

Combine like terms: 0 + 7 = 7
-4xy = 7

Divide each side by '-4y'.
x = -1.75y-1

Simplifying
x = -1.75y-1

Subproblem 2
Set the factor '(4 + -7xy)' equal to zero and attempt to solve:

Simplifying
4 + -7xy = 0

Solving
4 + -7xy = 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 + -7xy = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -7xy = 0 + -4
-7xy = 0 + -4

Combine like terms: 0 + -4 = -4
-7xy = -4

Divide each side by '-7y'.
x = 0.5714285714y-1

Simplifying
x = 0.5714285714y-1
Solution
x = {-1.75y-1, 0.5714285714y-1}

See similar equations:

| (7xy-4)(4xy-7)= | | 11-7x=98-28x | | 17x+29y=23 | | 585.00+0.21x=585.00+0.13x | | -3x^2+12x-8-y=0 | | 525.00+0.13x=585.00+0.13x | | 0=1000-8x | | 0=400+4x | | -3x^2+12x-8=y | | -4x+8=28 | | 1/9x=18 | | 8x^2+10x+4=0 | | 82-3x=10+17 | | 15k=5 | | 5+3m-3=7m+11-3m | | (3x-45)+(x+25)+(.2x+153)=180 | | 2(3k-6)-3(k-6)= | | 1/2r=24 | | 0=2x^2-10-8x | | 4z^2+5z+1=0 | | 20y=-40 | | x+5/3=x-5/4 | | w+1/6=8 | | u+7/9=8 | | 6x^2+4x+4=y | | 9-4(2c-7)= | | 0=3X^2+2 | | 1/5(x-30)=4/5 | | 6x+1=12-9x | | u-1/3=4/5 | | Y=84/X | | y-1/3=4/5 |

Equations solver categories