(4x-7)(9x+8)=0

Simple and best practice solution for (4x-7)(9x+8)=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-7)(9x+8)=0 equation: 


Simplifying
(4x + -7)(9x + 8) = 0

Reorder the terms:
(-7 + 4x)(9x + 8) = 0

Reorder the terms:
(-7 + 4x)(8 + 9x) = 0

Multiply (-7 + 4x) * (8 + 9x)
(-7(8 + 9x) + 4x * (8 + 9x)) = 0
((8 * -7 + 9x * -7) + 4x * (8 + 9x)) = 0
((-56 + -63x) + 4x * (8 + 9x)) = 0
(-56 + -63x + (8 * 4x + 9x * 4x)) = 0
(-56 + -63x + (32x + 36x2)) = 0

Combine like terms: -63x + 32x = -31x
(-56 + -31x + 36x2) = 0

Solving
-56 + -31x + 36x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-8 + -9x)(7 + -4x) = 0


Subproblem 1
Set the factor '(-8 + -9x)' equal to zero and attempt to solve:

Simplifying
-8 + -9x = 0

Solving
-8 + -9x = 0

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

Add '8' to each side of the equation.
-8 + 8 + -9x = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -9x = 0 + 8
-9x = 0 + 8

Combine like terms: 0 + 8 = 8
-9x = 8

Divide each side by '-9'.
x = -0.8888888889

Simplifying
x = -0.8888888889

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

Simplifying
7 + -4x = 0

Solving
7 + -4x = 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 + -4x = 0 + -7

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

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

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

Simplifying
x = 1.75
Solution
x = {-0.8888888889, 1.75}

See similar equations:

| 100=.7X-X | | P+26=16 | | 235x-22=4x | | 2(3w+4)=7 | | -5-(x+8)+6x=4x+8 | | 6x=5x-1 | | 2x-9=4x+5 | | 8(v+4)-2v=3(2v+2)-12 | | -5-(x+8)+6x=4(x+2) | | 9a^5=3a | | 5(3x-15)=15(x-5) | | -3(2s-5)-15=-3(4s+2)-4 | | .36(24)+.06x=.18(6+x) | | 37-41+15-x+34=36 | | -2(2s-6)-12=-3(9s+4)-4 | | 4x+1=-(x-21) | | 6-x+51+6-65+5=1 | | 4x+1=-(x+21) | | 5x+25Y=410 | | x-5=7x-8 | | x^2-6*y-36=0 | | 5a+6a= | | D+2+6(d-5)=4d+5 | | 14=-4w+7 | | 3a+a= | | 6*t+4+5= | | 7-5a=a-12 | | -9=-3x-7 | | (6)(-3t)+5= | | 0=x^3-8x^2+30x-36 | | 4x=-3+8x | | 6x-11=-19 |

Equations solver categories