5x^2-40=5

Simple and best practice solution for 5x^2-40=5 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 5x^2-40=5 equation: 


Simplifying
5x2 + -40 = 5

Reorder the terms:
-40 + 5x2 = 5

Solving
-40 + 5x2 = 5

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + 5x2 = 5 + 40

Combine like terms: -40 + 40 = 0
0 + 5x2 = 5 + 40
5x2 = 5 + 40

Combine like terms: 5 + 40 = 45
5x2 = 45

Divide each side by '5'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

See similar equations:

| 3x-8=8x+24 | | 2x+7y+4=11 | | 2(3p-8)=16p+24 | | 6x-11=5x+7 | | n-26+m=n | | 5t-t-8=3t-7 | | -100x^2+180x-100=0 | | 6a+5=7+9a | | 2.5t=17.5 | | -2x-2-6=18+3x-1 | | 4(6x+5)=24x-9 | | Z+17= | | 5u^2+18u-35=0 | | 4x-9x+52=3x+28 | | 7a-3b+2a+6b= | | 2x/7=9/3 | | 7m+1=6m+11 | | 15+x=14-2x | | -42+m=0 | | 3y=4.52 | | 6a-5=7-9a | | (a-5/2)^2 | | 5u^2-18u+35=0 | | 2b-5=4(3b+1)-2 | | K+7=2k-3 | | 9x-7=4x+13 | | 40x=24x+96x+8 | | wtimes(-2)=14 | | 64+3t=-t-52 | | Zr+8=4R-20 | | 1.25=0.75x+50 | | -5yz+5yz= |

Equations solver categories