2w^2-4w=28

Simple and best practice solution for 2w^2-4w=28 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^2-4w=28 equation:


Simplifying
2w2 + -4w = 28

Reorder the terms:
-4w + 2w2 = 28

Solving
-4w + 2w2 = 28

Solving for variable 'w'.

Reorder the terms:
-28 + -4w + 2w2 = 28 + -28

Combine like terms: 28 + -28 = 0
-28 + -4w + 2w2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-14 + -2w + w2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-14 + -2w + w2)' equal to zero and attempt to solve: Simplifying -14 + -2w + w2 = 0 Solving -14 + -2w + w2 = 0 Begin completing the square. Move the constant term to the right: Add '14' to each side of the equation. -14 + -2w + 14 + w2 = 0 + 14 Reorder the terms: -14 + 14 + -2w + w2 = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -2w + w2 = 0 + 14 -2w + w2 = 0 + 14 Combine like terms: 0 + 14 = 14 -2w + w2 = 14 The w term is -2w. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2w + 1 + w2 = 14 + 1 Reorder the terms: 1 + -2w + w2 = 14 + 1 Combine like terms: 14 + 1 = 15 1 + -2w + w2 = 15 Factor a perfect square on the left side: (w + -1)(w + -1) = 15 Calculate the square root of the right side: 3.872983346 Break this problem into two subproblems by setting (w + -1) equal to 3.872983346 and -3.872983346.

Subproblem 1

w + -1 = 3.872983346 Simplifying w + -1 = 3.872983346 Reorder the terms: -1 + w = 3.872983346 Solving -1 + w = 3.872983346 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + w = 3.872983346 + 1 Combine like terms: -1 + 1 = 0 0 + w = 3.872983346 + 1 w = 3.872983346 + 1 Combine like terms: 3.872983346 + 1 = 4.872983346 w = 4.872983346 Simplifying w = 4.872983346

Subproblem 2

w + -1 = -3.872983346 Simplifying w + -1 = -3.872983346 Reorder the terms: -1 + w = -3.872983346 Solving -1 + w = -3.872983346 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + w = -3.872983346 + 1 Combine like terms: -1 + 1 = 0 0 + w = -3.872983346 + 1 w = -3.872983346 + 1 Combine like terms: -3.872983346 + 1 = -2.872983346 w = -2.872983346 Simplifying w = -2.872983346

Solution

The solution to the problem is based on the solutions from the subproblems. w = {4.872983346, -2.872983346}

Solution

w = {4.872983346, -2.872983346}

See similar equations:

| 5-5/4x9 | | 28-3x=8-7x | | .02(x-2)=0.06-0.01(x+1) | | 11x=8x-2 | | (2x+120)+x=360 | | 6x-44=16 | | x+x+18+x+14=80 | | y^2+2y-36=0 | | 180+18x+24x+4xsquared-180=72 | | y=12x-x^2 | | -18-6k=6+3k | | 3y+3=5y+13 | | (7x-4)(4x+6)= | | 32s+16=176 | | 4x^2-9y^2-12y-4= | | 60x31/2= | | ydx+(x+(x^2)*(y^2))dy=0 | | 7(2l+3)=91 | | 60=200*.05t | | 2x^2+3-100=0 | | 40-2x=5-7x | | -2x+13=-29-5x | | 10x^2+3x=1 | | 4(x+1)-2=3-2(x-1) | | x^2-60*x-30=0 | | 3(b+2)=30 | | 3(b+2)=40 | | 18x+30(50-x)=27(50) | | log(7)2+log(7)x=0 | | 95y+35y+581y=0 | | 2m+4=t+13 | | 3(x-5)-(2x+5)=5(2x-3)-(x+12) |

Equations solver categories