3xsquared-21=0

Simple and best practice solution for 3xsquared-21=0 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 3xsquared-21=0 equation:


Simplifying
3xsquared + -21 = 0

Reorder the terms:
-21 + 3adeqrsux = 0

Solving
-21 + 3adeqrsux = 0

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + 3adeqrsux = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 3adeqrsux = 0 + 21
3adeqrsux = 0 + 21

Combine like terms: 0 + 21 = 21
3adeqrsux = 21

Divide each side by '3deqrsux'.
a = 7d-1e-1q-1r-1s-1u-1x-1

Simplifying
a = 7d-1e-1q-1r-1s-1u-1x-1

See similar equations:

| 36-100x^2= | | 2y=10/9 | | (7x-3)(5x+6)=0 | | 4x-4+x^3-7x^2= | | 60=16x^2-60 | | 35n^2-25n-14=-4 | | 3m^2-17m-56=0 | | x^2-2z+15=0 | | x+32+x=1196 | | x^2+24x+144=81+144 | | 26=-3x | | -x-14= | | (3x-4)(x+2)=-2 | | x^2-14x=-11 | | log[2](7x)=2 | | Z/6-(-11)=-49 | | N^2+3n-3=-5 | | ((16x^3-24x)÷40x)^(1/2) | | -12(m+-6)= | | z=ny | | 2x-(7+3x)=11-(3x-3) | | 1196/32x= | | -5x-8x+3(4x+2)-8-2x=-15x-3x+2-4x | | 32x+x=1196 | | 2y^2+12y+10=00 | | 3x+x=1196 | | 5(x-5)=12x-24 | | -12m+72= | | (x-1)^2/3=25 | | Y^2-2x^2-6y-4x+6=0 | | 10x-7=3x+5x+15 | | x+32x=1196 |

Equations solver categories