4w^2+12+9=81

Simple and best practice solution for 4w^2+12+9=81 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 4w^2+12+9=81 equation: 


Simplifying
4w2 + 12 + 9 = 81

Reorder the terms:
12 + 9 + 4w2 = 81

Combine like terms: 12 + 9 = 21
21 + 4w2 = 81

Solving
21 + 4w2 = 81

Solving for variable 'w'.

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

Add '-21' to each side of the equation.
21 + -21 + 4w2 = 81 + -21

Combine like terms: 21 + -21 = 0
0 + 4w2 = 81 + -21
4w2 = 81 + -21

Combine like terms: 81 + -21 = 60
4w2 = 60

Divide each side by '4'.
w2 = 15

Simplifying
w2 = 15

Take the square root of each side:
w = {-3.872983346, 3.872983346}

See similar equations:

| 63.25-(4+x)= | | 9w^2-18w-7=0 | | 3x^2-3=15 | | 9a-3=-39 | | F(x)=4x^3+34 | | 7(5x+2)-103= | | 14-3b=20 | | 19=a-6.6 | | a-3b=20 | | C=(3.14)3 | | -26+p=-36 | | 6.4=51.2 | | x*6=36 | | 356(63-4)d=89 | | 30-2y=29 | | 2(4-3x)-3(2x+1)= | | (5x-3)(2-7x)=-35x+31x-6 | | x=((5/2-1/2)/(7/3-2/3)) | | 19x+1-11=180 | | 3a(a-4)=27 | | logy=-1.1449 | | 51x=1100 | | x=(5/2-1/2)/(7/3-2/3) | | 4(1/2)^4^x=1000 | | 5(3a+4)=65 | | 51x=200 | | K^2=127 | | 2a+3-8=8 | | 51x=3000 | | 3log(5x)-2logx=7 | | 3000=51x | | 4x-6/2=1 |

Equations solver categories