2w^2-9w+5=0

Simple and best practice solution for 2w^2-9w+5=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 2w^2-9w+5=0 equation:


Simplifying
2w2 + -9w + 5 = 0

Reorder the terms:
5 + -9w + 2w2 = 0

Solving
5 + -9w + 2w2 = 0

Solving for variable 'w'.

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

Divide each side by '2'.
2.5 + -4.5w + w2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -4.5w + -2.5 + w2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -4.5w + w2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -4.5w + w2 = 0 + -2.5
-4.5w + w2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-4.5w + w2 = -2.5

The w term is -4.5w.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5w + 5.0625 + w2 = -2.5 + 5.0625

Reorder the terms:
5.0625 + -4.5w + w2 = -2.5 + 5.0625

Combine like terms: -2.5 + 5.0625 = 2.5625
5.0625 + -4.5w + w2 = 2.5625

Factor a perfect square on the left side:
(w + -2.25)(w + -2.25) = 2.5625

Calculate the square root of the right side: 1.600781059

Break this problem into two subproblems by setting 
(w + -2.25) equal to 1.600781059 and -1.600781059.

Subproblem 1

w + -2.25 = 1.600781059 Simplifying w + -2.25 = 1.600781059 Reorder the terms: -2.25 + w = 1.600781059 Solving -2.25 + w = 1.600781059 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + w = 1.600781059 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + w = 1.600781059 + 2.25 w = 1.600781059 + 2.25 Combine like terms: 1.600781059 + 2.25 = 3.850781059 w = 3.850781059 Simplifying w = 3.850781059

Subproblem 2

w + -2.25 = -1.600781059 Simplifying w + -2.25 = -1.600781059 Reorder the terms: -2.25 + w = -1.600781059 Solving -2.25 + w = -1.600781059 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + w = -1.600781059 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + w = -1.600781059 + 2.25 w = -1.600781059 + 2.25 Combine like terms: -1.600781059 + 2.25 = 0.649218941 w = 0.649218941 Simplifying w = 0.649218941

Solution

The solution to the problem is based on the solutions from the subproblems. w = {3.850781059, 0.649218941}

See similar equations:

| 4w^2-31w+21=0 | | 13-c=-15 | | z=2zx+2zy | | 48+3y=-9y | | 3x+8=121 | | -.50(4x+6)=-23 | | 11y+22=66 | | 7+yi=x-6i | | 2x=1-6x | | -(x+2)(x-2)2= | | 4x+0.6=24.6 | | 64=-4d+8 | | 37-x=8(-4-3x) | | y=1.2x-5.3 | | y=m(6)+b | | .50x-1=2 | | -.25y-1=0 | | 1.598x+1.01=9 | | 45=8r-3 | | (X+4i)=(5-i)+(3-4yi) | | 5+7t=23 | | 9-8y=y^2 | | -4(2z-3)=1 | | -8z=-11 | | 3y+4y=6y-5 | | -8z+12=1 | | 5/6x=60 | | 6a+10=52 | | 14(x+2)=6x | | 40x+20y=2500 | | 6m+2n-10m+10(4n)= | | 3v^2+13v+12=0 |

Equations solver categories