2w^2+14w+3=0

Simple and best practice solution for 2w^2+14w+3=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+14w+3=0 equation:


Simplifying
2w2 + 14w + 3 = 0

Reorder the terms:
3 + 14w + 2w2 = 0

Solving
3 + 14w + 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'.
1.5 + 7w + w2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + 7w + -1.5 + w2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + 7w + w2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 7w + w2 = 0 + -1.5
7w + w2 = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
7w + w2 = -1.5

The w term is 7w.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7w + 12.25 + w2 = -1.5 + 12.25

Reorder the terms:
12.25 + 7w + w2 = -1.5 + 12.25

Combine like terms: -1.5 + 12.25 = 10.75
12.25 + 7w + w2 = 10.75

Factor a perfect square on the left side:
(w + 3.5)(w + 3.5) = 10.75

Calculate the square root of the right side: 3.278719262

Break this problem into two subproblems by setting 
(w + 3.5) equal to 3.278719262 and -3.278719262.

Subproblem 1

w + 3.5 = 3.278719262 Simplifying w + 3.5 = 3.278719262 Reorder the terms: 3.5 + w = 3.278719262 Solving 3.5 + w = 3.278719262 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + w = 3.278719262 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + w = 3.278719262 + -3.5 w = 3.278719262 + -3.5 Combine like terms: 3.278719262 + -3.5 = -0.221280738 w = -0.221280738 Simplifying w = -0.221280738

Subproblem 2

w + 3.5 = -3.278719262 Simplifying w + 3.5 = -3.278719262 Reorder the terms: 3.5 + w = -3.278719262 Solving 3.5 + w = -3.278719262 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + w = -3.278719262 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + w = -3.278719262 + -3.5 w = -3.278719262 + -3.5 Combine like terms: -3.278719262 + -3.5 = -6.778719262 w = -6.778719262 Simplifying w = -6.778719262

Solution

The solution to the problem is based on the solutions from the subproblems. w = {-0.221280738, -6.778719262}

See similar equations:

| -k-(8k+7)=0 | | 9-2(X-7)=22 | | 16a=4 | | 79+x=221 | | 4c-2b/4c^2-b^2 | | 3y-5x=-61 | | 8b^2+8b+2= | | 10x+17y=-89 | | 2+6g=11-3 | | 2x+6y=1500 | | 25A= | | 24n+2= | | ln(x+2)=30 | | 2x-x-3/5=3/5 | | G(x)=9-x | | Lnx/x^3=0 | | 345+5=350 | | 99z=123 | | y=3.5(12)+10 | | y=3.5(7)+10 | | y=3.5(4)+10 | | -3x-15=32-2x | | r/r1=6 | | 13x+53=48 | | 5(x+y+z)=125 | | 6c+26-7c=13 | | X^3-8x-71=0 | | 5s+2m=28 | | -4x+3-4x=6 | | an=6n-7 | | 2b^2-b-45=0 | | x-1*2=20 |

Equations solver categories