x^2+2=20

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


Simplifying
x2 + 2 = 20

Reorder the terms:
2 + x2 = 20

Solving
2 + x2 = 20

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + x2 = 20 + -2

Combine like terms: 2 + -2 = 0
0 + x2 = 20 + -2
x2 = 20 + -2

Combine like terms: 20 + -2 = 18
x2 = 18

Simplifying
x2 = 18

Take the square root of each side:
x = {-4.242640687, 4.242640687}

See similar equations:

| y=-0.5(0)+4 | | 5-4(x+6)+5x= | | 2(s+3)+6(s-4)+1= | | -3(7n-2)=-99 | | 36a^2=16 | | 5(x-3)-4(x-3)= | | (8x^4)-125x=0 | | 12-(n+3)=10 | | 12x-(6-3x)= | | 12x-(6-3)= | | 5((2)+y)=20+3(2) | | n^2+5=21 | | 5-5z+7+z= | | x+1=21 | | 9x^2+18x+9=0 | | 2x=15y | | 7(1-7v)+3=108 | | -2((2)+3y)=18 | | 36(27-6.5x)=15(6x-7)+40.2 | | 176=92-u | | 10(x-2)-3=8x+5 | | (-6i)(-6i)=-36 | | (-6i)(-6i)= | | -8(a-3)+4=84 | | 150=2x+y | | 8+x=-16 | | -5.61-0.2b=5.5(b+2.4) | | a=5(a-2)+3 | | 3.5x=4 | | -2(-6n+7)+3=5(1+2n) | | 3x-9=x+21 | | 5y+3=2y-3(3)+5 |

Equations solver categories