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

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


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

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

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

Multiply (9 + 4x) * (-8 + x)
(9(-8 + x) + 4x * (-8 + x)) = 0
((-8 * 9 + x * 9) + 4x * (-8 + x)) = 0
((-72 + 9x) + 4x * (-8 + x)) = 0
(-72 + 9x + (-8 * 4x + x * 4x)) = 0
(-72 + 9x + (-32x + 4x2)) = 0

Combine like terms: 9x + -32x = -23x
(-72 + -23x + 4x2) = 0

Solving
-72 + -23x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-9 + -4x)(8 + -1x) = 0


Subproblem 1
Set the factor '(-9 + -4x)' equal to zero and attempt to solve:

Simplifying
-9 + -4x = 0

Solving
-9 + -4x = 0

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

Add '9' to each side of the equation.
-9 + 9 + -4x = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -4x = 0 + 9
-4x = 0 + 9

Combine like terms: 0 + 9 = 9
-4x = 9

Divide each side by '-4'.
x = -2.25

Simplifying
x = -2.25

Subproblem 2
Set the factor '(8 + -1x)' equal to zero and attempt to solve:

Simplifying
8 + -1x = 0

Solving
8 + -1x = 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 + -1x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1x = 0 + -8
-1x = 0 + -8

Combine like terms: 0 + -8 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8
Solution
x = {-2.25, 8}

See similar equations:

| -1+7x=-6x-118 | | 3(a-2)+a=2(a-1) | | -6(36-6j)=32 | | 52/68=13/x | | -10x+2x=4 | | 4a-10=a-7 | | 10x-2=49 | | 3x=8+5 | | 1/3a=-4+1/3 | | 3+9=6x | | 5/(u+5)=((-7/2u+10)+2) | | -3x+5x-2=18 | | 1/5f=5 | | m-(4)=32 | | 3x-10=-21+4x | | 1/5f=6 | | 50x+11+2(2x+3)=2x+9 | | -2x-18=6-3(2x+2x)+4x | | 3(x-3)=4(2x+1) | | 9x+42=39 | | 20x-(3-55x)=22 | | t^3-4t=0 | | c-6.5-10.25= | | 0.1x=0.9+-0.4 | | 3(x+5x)-9x-13=2x+1 | | 2x+4(2x-8)=18 | | f/12+20=20 | | 10x-4(x-3)= | | 97-28= | | 4(x-2)-5=10 | | x/2-11=-8 | | 3x+13=97 |

Equations solver categories