3x^2-7=

Simple and best practice solution for 3x^2-7= 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^2-7= equation:


Simplifying
3x2 + -7 = 0

Reorder the terms:
-7 + 3x2 = 0

Solving
-7 + 3x2 = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 3x2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 3x2 = 0 + 7
3x2 = 0 + 7

Combine like terms: 0 + 7 = 7
3x2 = 7

Divide each side by '3'.
x2 = 2.333333333

Simplifying
x2 = 2.333333333

Take the square root of each side:
x = {-1.527525232, 1.527525232}

See similar equations:

| 5/4x-2/3y=1 | | -28+n=-39 | | -2/3x5/4 | | 5x+7x=7x+5 | | 72/82*49/82= | | 3=1.5b+11 | | y^2=-45+14y | | lny=16x+lnC | | 8+12m+9=-50m+45 | | -15x^2-40x=-20x^2-8x | | 1/4z2 | | -3.08/-0.2=15.4 | | 6/7*(-7/1)= | | 19-y=6 | | f(x)=-8x^2-5 | | 25=-2 | | -5(-3u+7)-7u=2(u-9)-3 | | 2=5x-1+b | | 4*(-7/8)= | | -4x+6x+10=-2x-5+15 | | c-(y+2)=3y | | 24(3x^2+4)=0 | | 25y-40=20y-80 | | d/9.7=2.08 | | 4x+3(13)+7=4x+4(13)-6 | | 7-1.1k=32 | | -2(7n-2)-3(4+4n)=n-8+5n | | x/7.4=6.9 | | 4(13)+3y+7=4x+4(13)-6 | | x^3+3x^2+8x-72=0 | | -7k+63=9k-45-14k | | e/-0.2=15.4 |

Equations solver categories