2w^2-3w=72

Simple and best practice solution for 2w^2-3w=72 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 2w^2-3w=72 equation:


Simplifying
2w2 + -3w = 72

Reorder the terms:
-3w + 2w2 = 72

Solving
-3w + 2w2 = 72

Solving for variable 'w'.

Reorder the terms:
-72 + -3w + 2w2 = 72 + -72

Combine like terms: 72 + -72 = 0
-72 + -3w + 2w2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-36 + -1.5w + w2 = 0

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + -1.5w + 36 + w2 = 0 + 36

Reorder the terms:
-36 + 36 + -1.5w + w2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + -1.5w + w2 = 0 + 36
-1.5w + w2 = 0 + 36

Combine like terms: 0 + 36 = 36
-1.5w + w2 = 36

The w term is -1.5w.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5w + 0.5625 + w2 = 36 + 0.5625

Reorder the terms:
0.5625 + -1.5w + w2 = 36 + 0.5625

Combine like terms: 36 + 0.5625 = 36.5625
0.5625 + -1.5w + w2 = 36.5625

Factor a perfect square on the left side:
(w + -0.75)(w + -0.75) = 36.5625

Calculate the square root of the right side: 6.046693311

Break this problem into two subproblems by setting 
(w + -0.75) equal to 6.046693311 and -6.046693311.

Subproblem 1

w + -0.75 = 6.046693311 Simplifying w + -0.75 = 6.046693311 Reorder the terms: -0.75 + w = 6.046693311 Solving -0.75 + w = 6.046693311 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + w = 6.046693311 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + w = 6.046693311 + 0.75 w = 6.046693311 + 0.75 Combine like terms: 6.046693311 + 0.75 = 6.796693311 w = 6.796693311 Simplifying w = 6.796693311

Subproblem 2

w + -0.75 = -6.046693311 Simplifying w + -0.75 = -6.046693311 Reorder the terms: -0.75 + w = -6.046693311 Solving -0.75 + w = -6.046693311 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + w = -6.046693311 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + w = -6.046693311 + 0.75 w = -6.046693311 + 0.75 Combine like terms: -6.046693311 + 0.75 = -5.296693311 w = -5.296693311 Simplifying w = -5.296693311

Solution

The solution to the problem is based on the solutions from the subproblems. w = {6.796693311, -5.296693311}

See similar equations:

| 8-6b=30 | | 8.33333333333(3)-5=20 | | -8=-2x-18 | | 4+6h+5= | | 4x(x-7)(3x+4)=0 | | 6(a^2+4a)+16= | | 17=7-5/6t | | 29+9r=11r(-7r-11) | | 5/11/17/11 | | 20x^3-50x^2= | | x/x-8=0 | | 3+23a=45 | | -2(4x+2)=-5[1+2(x-1)] | | 20*(log(x))=24 | | 20logx=24 | | 2(t-3)=12-2t | | 37x+11=6(6x+8) | | X^2(X^2-x+7)= | | (10x)(5x/4) | | 0.22(x+3)=0.2x+1.8 | | 28Y^4x^3= | | 5y-2=-8(y-3) | | (3a^2+xy)(3a^2-3xy)= | | C-1.23=0.28 | | -126=148 | | 8x-3x+7=x-4+11 | | -70-14x=8(1-12x)+4 | | 7=-1/2x | | 16(2-x)=3 | | 8.33(3)-5=20 | | -3(m^4+m^3-2m^2)= | | 5x-3+2(x+1)=6x+5 |

Equations solver categories