(4x+5)(8x-9)=0

Simple and best practice solution for (4x+5)(8x-9)=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+5)(8x-9)=0 equation: 


Simplifying
(4x + 5)(8x + -9) = 0

Reorder the terms:
(5 + 4x)(8x + -9) = 0

Reorder the terms:
(5 + 4x)(-9 + 8x) = 0

Multiply (5 + 4x) * (-9 + 8x)
(5(-9 + 8x) + 4x * (-9 + 8x)) = 0
((-9 * 5 + 8x * 5) + 4x * (-9 + 8x)) = 0
((-45 + 40x) + 4x * (-9 + 8x)) = 0
(-45 + 40x + (-9 * 4x + 8x * 4x)) = 0
(-45 + 40x + (-36x + 32x2)) = 0

Combine like terms: 40x + -36x = 4x
(-45 + 4x + 32x2) = 0

Solving
-45 + 4x + 32x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -4x)(9 + -8x) = 0


Subproblem 1
Set the factor '(-5 + -4x)' equal to zero and attempt to solve:

Simplifying
-5 + -4x = 0

Solving
-5 + -4x = 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 + -4x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -4x = 0 + 5
-4x = 0 + 5

Combine like terms: 0 + 5 = 5
-4x = 5

Divide each side by '-4'.
x = -1.25

Simplifying
x = -1.25

Subproblem 2
Set the factor '(9 + -8x)' equal to zero and attempt to solve:

Simplifying
9 + -8x = 0

Solving
9 + -8x = 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 + -8x = 0 + -9

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

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

Divide each side by '-8'.
x = 1.125

Simplifying
x = 1.125
Solution
x = {-1.25, 1.125}

See similar equations:

| 2x^2+7x+10=(x+4)(x+4) | | 175000.00+55000x=35000.00+1680.00x | | (3(-3))-4y=23 | | b-3/15=-1 | | 3(-3)-4y=23 | | 9y/9y | | 2x^3+6x^2+6x+2=0 | | 3(-1)-4(y)=23 | | 64*5.0*0.075/180-2*0.015 | | 28s^4t+16s^3t+16s^2t=0 | | 4x^2+y^2+72x+4y+264=0 | | (100000*0.5473-4650)/1000*33.29 | | 1/2(2x-3)=3/4(x+5)+1 | | 5x^3-9x^2=2x | | (X^2)+16x+65=0 | | 16-32b= | | 9x^2-14x-10=0 | | (3x^2-11x-4)/(3x^3-5x^2-2x) | | -510=-34m | | 4=x^5-9x^3-10x+8 | | 16/32b | | 9b/4b | | k/4=6.7 | | -4x-2forx=5 | | 10x-9y=-5 | | 3/5x^2=18/5x+3/5 | | (2x+5)(5x-9)=0 | | V/3+1/4=5/12 | | Y-5=2y+6-y | | 0=10r^2-28r-160 | | T^2+13t+36= | | 8x^2+22x-18=10-3x |

Equations solver categories