7x^2+2=30

Simple and best practice solution for 7x^2+2=30 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 7x^2+2=30 equation: 


Simplifying
7x2 + 2 = 30

Reorder the terms:
2 + 7x2 = 30

Solving
2 + 7x2 = 30

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 + 7x2 = 30 + -2

Combine like terms: 2 + -2 = 0
0 + 7x2 = 30 + -2
7x2 = 30 + -2

Combine like terms: 30 + -2 = 28
7x2 = 28

Divide each side by '7'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

See similar equations:

| x-3(7-x)=-41 | | 3v^3+5v^2-6v-10= | | 5x+2x-8=3+10x-1 | | -25+x^2=0 | | 6x-3-2x=x+6+x | | 7a=3+7(a-1) | | 0.3x+0.2=0.5x-0.2 | | -3x-2+5x=-10 | | 38-6x=6-2x | | 2y+6-6y=14 | | 8+2x-5=3x+22 | | 5y+12=7y+16 | | 5x-3=-x-9 | | 7x-5x=67+33 | | 4u^2+13u+3=0 | | 5(x-3)=4(x-6) | | 16x^2+36=48x | | 1/4(8x-12)=1/3(6x+12) | | 2(t-1)-3(2t-1)=2-5(5t+1) | | x^3+4x^2+16x+64=0 | | x^4+x^3+x^2=0 | | 5+=17-2 | | 2(x-4)=15 | | 10.2y-7.3y= | | 2(t-2)-5(3t-4)=14-8(4t+1) | | -3(4x+2)-2=-4(x+1)+3x | | 7y-6+y=-(y+9y) | | y^2+2y= | | x^2-5=16x | | 7w=-4w | | -10=-8x+4(4x-3) | | 5x^2-3x-6=0 |

Equations solver categories