9x^2=21

Simple and best practice solution for 9x^2=21 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^2=21 equation: 


Simplifying
9x2 = 21

Solving
9x2 = 21

Solving for variable 'x'.

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

Divide each side by '9'.
x2 = 2.333333333

Simplifying
x2 = 2.333333333

Take the square root of each side:
x = {-1.527525232, 1.527525232}

See similar equations:

| 4(7+3)=2y | | 2a^2-46a=-252 | | 4572(2-x)=135676 | | -5x^2+4x-2=0 | | 10x+44x^2=0.6 | | 3.2d=40.8 | | 7+p=-1+7 | | 6x^2+36x+12=0 | | 10x+44.22x^2=0.62 | | 4x-3=x+1 | | 14-3a=5a-6 | | 10x+20x^2=10 | | 90+t^2+23t=0 | | -9+5x+4x^2=0 | | 10+x^2+-7x=0 | | (x^2-1000x)= | | 2x-17x-9x=4x-20x-144 | | X^4*lnx-lnx=0 | | 5a*2b+ab*2= | | 100x+442212.239x^2=0.62 | | (-1/2)(2/3)= | | 2s=14 | | 2lnx^4-lnx^2=12 | | ln^2(x)-5lnx-14=0 | | (2x+5)(3x-4)= | | 100x+432979.5918x^2=0.6220 | | (3x-4)(2x+5)= | | 9x+7=3x+19 | | 5x+10(90-x)=500 | | 9(n+2)=-6(n+7) | | 100x+120x^2=20 | | 5*x+10(90-x)=500 |

Equations solver categories