3x^2+8=251

Simple and best practice solution for 3x^2+8=251 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 3x^2+8=251 equation: 


Simplifying
3x2 + 8 = 251

Reorder the terms:
8 + 3x2 = 251

Solving
8 + 3x2 = 251

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 3x2 = 251 + -8

Combine like terms: 8 + -8 = 0
0 + 3x2 = 251 + -8
3x2 = 251 + -8

Combine like terms: 251 + -8 = 243
3x2 = 243

Divide each side by '3'.
x2 = 81

Simplifying
x2 = 81

Take the square root of each side:
x = {-9, 9}

See similar equations:

| m+m+2m-15= | | 8x=30-7x | | x-9=3.7 | | 3.80=15.20 | | 3x+4=7x-3 | | 7(a-4)+8= | | 1-8x=-39 | | -7-3(4a-8)=-3a-2(-2-2a) | | 16s^2=64 | | 9pq-9p+13pq= | | (y+9)(2y-3)= | | x-2.7=2.5 | | 4n-(6)=10n | | 3x^2-3-246=0 | | 6(2a+10)=5(2+5) | | 32-2(10-4)=45x | | 7*2-1(6*2-5)=7 | | 0.4x-0.2(3-x)=14 | | 16-4x^2=-20 | | 42=8n+13n | | -(8y+1)-(-7y-8)=3 | | 6x-0.8=5x+0.7 | | 7x-14=-3x+26 | | 4p+7(1.5p)=489.85 | | -16x+-16x-48x-36= | | 0.5(2v-4)=-7 | | 6u-1+6u=11 | | -x^2-5x=-5 | | -t+5=1t-19 | | 2x(x-4)(x+3)=0 | | -5-11p+23p-p+4= | | 4k+4k-25= |

Equations solver categories