9-9x^2=

Simple and best practice solution for 9-9x^2= 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 9-9x^2= equation: 


Simplifying
9 + -9x2 = 0

Solving
9 + -9x2 = 0

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -9x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -9x2 = 0 + -9
-9x2 = 0 + -9

Combine like terms: 0 + -9 = -9
-9x2 = -9

Divide each side by '-9'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}

See similar equations:

| 13x-5y=20 | | 3x+2y+x*2y+3y+3x= | | 3(-1+7x)=165 | | 2x+3x+6+10=47 | | 3x+5x+7=31 | | 3x+3x+4+4=20 | | 2sin^2x+1=0 | | x+x+8=28 | | (5-2b)(6+5b)= | | 2x+2x+6x+6x+4X=72 | | 0=5x^2-2.2x+12.3 | | M=(3x+4)(x-5)-(3x+4) | | 2x+2x+3x+6x=60 | | -3(2x-3)=2(5x+4) | | (1/2x+1/2)=2x+2 | | 2Y+2Y+2Y+3Y=45 | | (4x+8)=(4y+7) | | 2-6x^2= | | 24=2(0.25l+1)+2l | | -7(y+8)=5y+28 | | x+10-3x=6 | | 8.96x+71.68=143.36 | | 3v-45=6(v-7) | | -7(u+4)=-3u-32 | | 8.4a+15=99 | | 3(y+8)=3m+1 | | 7x+4=-8 | | 8.22x+4=67.5684+2x | | I=hrt | | 3log(10)2x=4 | | 4.87x+38.96=77.92 | | 4.52x+31.64=63.28 |

Equations solver categories