(8w^2-5w+4)-4(w^2+6w-1)=

Simple and best practice solution for (8w^2-5w+4)-4(w^2+6w-1)= 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 (8w^2-5w+4)-4(w^2+6w-1)= equation:


Simplifying
(8w2 + -5w + 4) + -4(w2 + 6w + -1) = 0

Reorder the terms:
(4 + -5w + 8w2) + -4(w2 + 6w + -1) = 0

Remove parenthesis around (4 + -5w + 8w2)
4 + -5w + 8w2 + -4(w2 + 6w + -1) = 0

Reorder the terms:
4 + -5w + 8w2 + -4(-1 + 6w + w2) = 0
4 + -5w + 8w2 + (-1 * -4 + 6w * -4 + w2 * -4) = 0
4 + -5w + 8w2 + (4 + -24w + -4w2) = 0

Reorder the terms:
4 + 4 + -5w + -24w + 8w2 + -4w2 = 0

Combine like terms: 4 + 4 = 8
8 + -5w + -24w + 8w2 + -4w2 = 0

Combine like terms: -5w + -24w = -29w
8 + -29w + 8w2 + -4w2 = 0

Combine like terms: 8w2 + -4w2 = 4w2
8 + -29w + 4w2 = 0

Solving
8 + -29w + 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'.
2 + -7.25w + w2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -7.25w + -2 + w2 = 0 + -2

Reorder the terms:
2 + -2 + -7.25w + w2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -7.25w + w2 = 0 + -2
-7.25w + w2 = 0 + -2

Combine like terms: 0 + -2 = -2
-7.25w + w2 = -2

The w term is -7.25w.  Take half its coefficient (-3.625).
Square it (13.140625) and add it to both sides.

Add '13.140625' to each side of the equation.
-7.25w + 13.140625 + w2 = -2 + 13.140625

Reorder the terms:
13.140625 + -7.25w + w2 = -2 + 13.140625

Combine like terms: -2 + 13.140625 = 11.140625
13.140625 + -7.25w + w2 = 11.140625

Factor a perfect square on the left side:
(w + -3.625)(w + -3.625) = 11.140625

Calculate the square root of the right side: 3.337757481

Break this problem into two subproblems by setting 
(w + -3.625) equal to 3.337757481 and -3.337757481.

Subproblem 1

w + -3.625 = 3.337757481 Simplifying w + -3.625 = 3.337757481 Reorder the terms: -3.625 + w = 3.337757481 Solving -3.625 + w = 3.337757481 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '3.625' to each side of the equation. -3.625 + 3.625 + w = 3.337757481 + 3.625 Combine like terms: -3.625 + 3.625 = 0.000 0.000 + w = 3.337757481 + 3.625 w = 3.337757481 + 3.625 Combine like terms: 3.337757481 + 3.625 = 6.962757481 w = 6.962757481 Simplifying w = 6.962757481

Subproblem 2

w + -3.625 = -3.337757481 Simplifying w + -3.625 = -3.337757481 Reorder the terms: -3.625 + w = -3.337757481 Solving -3.625 + w = -3.337757481 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '3.625' to each side of the equation. -3.625 + 3.625 + w = -3.337757481 + 3.625 Combine like terms: -3.625 + 3.625 = 0.000 0.000 + w = -3.337757481 + 3.625 w = -3.337757481 + 3.625 Combine like terms: -3.337757481 + 3.625 = 0.287242519 w = 0.287242519 Simplifying w = 0.287242519

Solution

The solution to the problem is based on the solutions from the subproblems. w = {6.962757481, 0.287242519}

See similar equations:

| 2x(x+5)=100 | | 7x^4+3x^2-11-(-5x^4)-8x^2+6= | | 2(3x-7)=8x+10 | | 4x^2=60-x | | 7r-18=7+2r | | 1.5=0.05x-98.85 | | y=-1.5x-33 | | y=1.5x-33 | | 5y-13=-4+4y | | 6(2t-3)+5t=36-t | | (4q^3+7q^2+8q-9)-(8q-9+7q^2+14q^3)= | | 3x+7=5x+11 | | 3y^2+8=14y | | 3x+1=-(x-13) | | 3(3+5x)-5=49 | | (7m-(-6))-(2m^3-m^2)= | | 12r^3+22r^2-20r=0 | | 3x+1=-(x-3) | | x^2=405 | | 16y-4=81-y | | (4a^2+8a+12)-(3a^3+4a^2+7a-12)= | | (x+8)2=81 | | x+345=34x-7 | | 36s^2-100=0 | | (10y^3-8y-13)-(6y^2+2y+7)= | | 2a^2+18a+28=0 | | 28k^2+13k-6=0 | | (2x-1)(3x+2)-(x+3)(2x+1)=0 | | 2w-11+4w=7 | | x^2+62x=31250 | | -4a+5+5a=9-23 | | x(x-62)=31250 |

Equations solver categories