3x^2+x^2=400

Simple and best practice solution for 3x^2+x^2=400 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+x^2=400 equation: 


Simplifying
3x2 + x2 = 400

Combine like terms: 3x2 + x2 = 4x2
4x2 = 400

Solving
4x2 = 400

Solving for variable 'x'.

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

Divide each side by '4'.
x2 = 100

Simplifying
x2 = 100

Take the square root of each side:
x = {-10, 10}

See similar equations:

| -2x+8=2(3x+4) | | x+21+121=180 | | 2g+19=-7(g+19)-19 | | f(5x)=4x^2+3x-4 | | x+0.08x=0 | | 19m-10=35m+22 | | 40/y=-5 | | f(n)=8n-4 | | (3^1/3)^1/2 | | f(x+1)=4x^2+3x-4 | | x-.08x=0 | | 3y=9y+78 | | 3n+4=5(n+2)-2m | | x-.08=0 | | 6-16=z/-7 | | 9x^6-6x^3+1=0 | | 27^1/6 | | 15y=2(7y-3) | | 5(18z+18)=6(-1+7z) | | 2x^2+11x-36=0 | | 3n+4=5(n+2) | | 16x+2y=110 | | 2x-(x-2)=-2-x-(-1) | | 2g-15=9 | | x-.1056x=0 | | x+5/2=5 | | x-0.1056=0 | | 2x+4y+64+64=360 | | 2x^2+5x+3=o | | 2w=-9(w-19)+16 | | Mm=3m-2 | | (3/7-i) |

Equations solver categories