20-x^2=-16

Simple and best practice solution for 20-x^2=-16 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 20-x^2=-16 equation: 


Simplifying
20 + -1x2 = -16

Solving
20 + -1x2 = -16

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + -1x2 = -16 + -20

Combine like terms: 20 + -20 = 0
0 + -1x2 = -16 + -20
-1x2 = -16 + -20

Combine like terms: -16 + -20 = -36
-1x2 = -36

Divide each side by '-1'.
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}

See similar equations:

| 2b-19-8b=18-38b+3 | | 39inches= | | -101=-5x-7(-5x-7) | | 8/r+2=r/2 | | Lgx+2lgy=3 | | 10=6x+15 | | 8/r+2=r/1 | | 8/r+2=r/3 | | -148=-4x+4(7x+17) | | 8x-16=4x-2x | | 8/r+2=r/6 | | x*x+7x-10=3 | | 3v+13-9v=19 | | -165=-6x-3(5x+6) | | t^3+2t=0 | | 2ln(x)=ln(2)+ln(5x-12) | | -4x+6+x=12 | | 11-9y=14 | | -7x-2(-6x+18)=-1 | | 3(n+-2)=15 | | 10Z+4=3 | | 2mx+4m-6=x^2+2x+3 | | 90/r+2=r/1 | | -7h+15=23.4 | | 90/r+2=r/12 | | 2=-2x+2(2x+10) | | 4s^4t^2-8s^3t^3= | | 90/r+2=r/8 | | -71=-7x-4(-5x-5) | | f(x)=-6x-1(fg)(x) | | -2x-2(-5x+5)=62 | | s=48t-3t |

Equations solver categories