4w^2-12w-1=0

Simple and best practice solution for 4w^2-12w-1=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 4w^2-12w-1=0 equation:


Simplifying
4w2 + -12w + -1 = 0

Reorder the terms:
-1 + -12w + 4w2 = 0

Solving
-1 + -12w + 4w2 = 0

Solving for variable 'w'.

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

Divide each side by '4'.
-0.25 + -3w + w2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + -3w + 0.25 + w2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + -3w + w2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + -3w + w2 = 0 + 0.25
-3w + w2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
-3w + w2 = 0.25

The w term is -3w.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3w + 2.25 + w2 = 0.25 + 2.25

Reorder the terms:
2.25 + -3w + w2 = 0.25 + 2.25

Combine like terms: 0.25 + 2.25 = 2.5
2.25 + -3w + w2 = 2.5

Factor a perfect square on the left side:
(w + -1.5)(w + -1.5) = 2.5

Calculate the square root of the right side: 1.58113883

Break this problem into two subproblems by setting 
(w + -1.5) equal to 1.58113883 and -1.58113883.

Subproblem 1

w + -1.5 = 1.58113883 Simplifying w + -1.5 = 1.58113883 Reorder the terms: -1.5 + w = 1.58113883 Solving -1.5 + w = 1.58113883 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + w = 1.58113883 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + w = 1.58113883 + 1.5 w = 1.58113883 + 1.5 Combine like terms: 1.58113883 + 1.5 = 3.08113883 w = 3.08113883 Simplifying w = 3.08113883

Subproblem 2

w + -1.5 = -1.58113883 Simplifying w + -1.5 = -1.58113883 Reorder the terms: -1.5 + w = -1.58113883 Solving -1.5 + w = -1.58113883 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + w = -1.58113883 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + w = -1.58113883 + 1.5 w = -1.58113883 + 1.5 Combine like terms: -1.58113883 + 1.5 = -0.08113883 w = -0.08113883 Simplifying w = -0.08113883

Solution

The solution to the problem is based on the solutions from the subproblems. w = {3.08113883, -0.08113883}

See similar equations:

| 4(4x-8)-5=4(x-3)+35 | | 3a-2=2a+3 | | 3x-30=2x | | 10x-(2x+8)=4x-13 | | Y=15X+20 | | 2n^2-3n-21=0 | | -(7y+4)-(-6y-8)=4 | | 3(x+9)=8x+8-5x+19 | | 8h=6+30 | | 4ln(5x)=12 | | -7(7y+4)-(-6y-8)=4 | | 3x-8=2x+16 | | 1-3n=3.5+9n | | .6h=12 | | 10-5n=9-3n | | (V-10)(6v-1)= | | 2x-2=2(x+3) | | (3v-5)(2v-2)= | | 5(2x-8)-6=5(x-4)+9 | | 7A^3+16A^2-15A= | | .5(x+200)=.58x-476 | | -5(2p+3)= | | -6x+25=-17 | | 14x^2=25x+25 | | -x^2+5x-18=0 | | -3x+2=-13 | | -3(4m+4)= | | 16x^2-13x-4=0 | | 0.06(x+9)=0.03(2x+9)+0.27 | | a^2q^2-49=0 | | 9-2x=3x+9 | | 5(4.2j-2.4)=1.5(8j-4) |

Equations solver categories