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

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


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

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

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

Multiply (-7 + 9x) * (8 + 9x)
(-7(8 + 9x) + 9x * (8 + 9x)) = 0
((8 * -7 + 9x * -7) + 9x * (8 + 9x)) = 0
((-56 + -63x) + 9x * (8 + 9x)) = 0
(-56 + -63x + (8 * 9x + 9x * 9x)) = 0
(-56 + -63x + (72x + 81x2)) = 0

Combine like terms: -63x + 72x = 9x
(-56 + 9x + 81x2) = 0

Solving
-56 + 9x + 81x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-8 + -9x)(7 + -9x) = 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 + -9x)' equal to zero and attempt to solve: Simplifying 7 + -9x = 0 Solving 7 + -9x = 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 + -9x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9x = 0 + -7 -9x = 0 + -7 Combine like terms: 0 + -7 = -7 -9x = -7 Divide each side by '-9'. x = 0.7777777778 Simplifying x = 0.7777777778

Solution

x = {-0.8888888889, 0.7777777778}

See similar equations:

| 21000(60)=50000v | | 3x-3x=-1-5x | | (5x+7)(x-8)= | | 4x+10-6x=4 | | 2x^2-6x+5=8.5 | | (2+3x)(4-x)-3x(3-x)=0 | | 2A+17=23 | | X+4-3=3 | | 7x+12y+18p-3x+8y= | | tan63=19/x | | 5x+28(x-4)=152 | | 10x=424x | | 5x-6y=70 | | y=2x^3-12x^2+18x | | (4x-0.5)(4+x)=0 | | 7x+12y+18p-3x= | | (1/3)9square3 | | 4/6=m/100 | | (z^2+7)-4(2+z)=44 | | 8x-5y=-18 | | F=95(60)+32 | | 4x+8(x+560)=8320 | | x/2-1/3=x-1/3-x/2 | | x+x-560=8320 | | x+560+x=8320 | | cos8t/8t | | 7x+12y+18p-3x+8y-10p= | | 1x^2+6x+9=0 | | 5y+5=70 | | cot(x)=1.700 | | 3w-3z=-6 | | 3x+3=10x-60 |

Equations solver categories