81-36x^2=

Simple and best practice solution for 81-36x^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 81-36x^2= equation: 


Simplifying
81 + -36x2 = 0

Solving
81 + -36x2 = 0

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + -36x2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -36x2 = 0 + -81
-36x2 = 0 + -81

Combine like terms: 0 + -81 = -81
-36x2 = -81

Divide each side by '-36'.
x2 = 2.25

Simplifying
x2 = 2.25

Take the square root of each side:
x = {-1.5, 1.5}

See similar equations:

| -3(x+4)=-8x+3 | | 8w+12=2(w+3) | | 20x^3+100x^2+120x=0 | | x+6+4=6 | | 4-x-11=-4 | | 8x-26x^2+15x^3=0 | | 4x-11=-4 | | 4(x+b)=7x+36 | | (-2-b)-b=0 | | -34=5(y-8)-3y | | 8x^2+7x=-1 | | 3u+3(u-7)=27 | | 28x^2-46x-40=0 | | 5x+55+35y= | | 5x^3+3x^2-35x-21= | | 6(v-8)-8v=-30 | | 18-3y+y=10 | | 6x^6y^4+48x^4y^4+18xy=0 | | x+6+2x+9+4x+5+5x+4=360 | | (y+9)(y-10)= | | (y+9)(y-9)= | | 7z^2+35z-az-5a=0 | | 4a+2-8a+1=11 | | m+5=7 | | x+(16+x)=72 | | 6x^6-42x^4=0 | | Y^2+15y+56=0 | | Y^2-3y-70=0 | | Y^2+6y-40=0 | | log(4x-1)+log(x+7)=1 | | (5x^2-26x+24)=0 | | 16+5(4)+2= |

Equations solver categories