4d^2+81=9

Simple and best practice solution for 4d^2+81=9 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 4d^2+81=9 equation:


Simplifying
4d2 + 81 = 9

Reorder the terms:
81 + 4d2 = 9

Solving
81 + 4d2 = 9

Solving for variable 'd'.

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

Add '-81' to each side of the equation.
81 + -81 + 4d2 = 9 + -81

Combine like terms: 81 + -81 = 0
0 + 4d2 = 9 + -81
4d2 = 9 + -81

Combine like terms: 9 + -81 = -72
4d2 = -72

Divide each side by '4'.
d2 = -18

Simplifying
d2 = -18

Reorder the terms:
18 + d2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + d2 = 0

The solution to this equation could not be determined.

See similar equations:

| (4b-7)(b-2)=0 | | 5x+11=-21-4x | | 4x^2-16x=8 | | 13x-(5x+-2x)=5(3x+-1) | | 13x(5x-2x)=5(3x-1) | | n^2=18 | | 6g-16=44 | | k^2=68 | | Log[5](4x+1)=log[5](9x+5) | | (4)(1/4) | | 9b+17=107 | | a^2=61 | | 2-3(7x-3-11x)-(4-3x-9)=3x-2(7x-5)+2(13x-11) | | 64P^2=25 | | 10h-49=21 | | 6d-32=70 | | 3(7x-3-11x)=-2(7x-5) | | 3f+13=37 | | x^2-7=77 | | 5r+11=51 | | log(x)-log(5)=4 | | (6g+5)+(-2+3g)= | | 4y=16-x^2 | | Log[4](x^2+2x)=log[4]15 | | -3z-1=2z+6 | | -16t^2+35t+5=0 | | 4x-13=7x-16 | | -16t^2+35t=-5 | | 7x+12=4x+63 | | y=(y*.35)+20000 | | 2x+116=5x+183 | | 5x+183=2x+116 |

Equations solver categories