(w^2-10w+5)-(-4w^2-10w+4)+(-3w+9w-7)=

Simple and best practice solution for (w^2-10w+5)-(-4w^2-10w+4)+(-3w+9w-7)= 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 (w^2-10w+5)-(-4w^2-10w+4)+(-3w+9w-7)= equation:


Simplifying
(w2 + -10w + 5) + -1(-4w2 + -10w + 4) + (-3w + 9w + -7) = 0

Reorder the terms:
(5 + -10w + w2) + -1(-4w2 + -10w + 4) + (-3w + 9w + -7) = 0

Remove parenthesis around (5 + -10w + w2)
5 + -10w + w2 + -1(-4w2 + -10w + 4) + (-3w + 9w + -7) = 0

Reorder the terms:
5 + -10w + w2 + -1(4 + -10w + -4w2) + (-3w + 9w + -7) = 0
5 + -10w + w2 + (4 * -1 + -10w * -1 + -4w2 * -1) + (-3w + 9w + -7) = 0
5 + -10w + w2 + (-4 + 10w + 4w2) + (-3w + 9w + -7) = 0

Reorder the terms:
5 + -10w + w2 + -4 + 10w + 4w2 + (-7 + -3w + 9w) = 0

Combine like terms: -3w + 9w = 6w
5 + -10w + w2 + -4 + 10w + 4w2 + (-7 + 6w) = 0

Remove parenthesis around (-7 + 6w)
5 + -10w + w2 + -4 + 10w + 4w2 + -7 + 6w = 0

Reorder the terms:
5 + -4 + -7 + -10w + 10w + 6w + w2 + 4w2 = 0

Combine like terms: 5 + -4 = 1
1 + -7 + -10w + 10w + 6w + w2 + 4w2 = 0

Combine like terms: 1 + -7 = -6
-6 + -10w + 10w + 6w + w2 + 4w2 = 0

Combine like terms: -10w + 10w = 0
-6 + 0 + 6w + w2 + 4w2 = 0
-6 + 6w + w2 + 4w2 = 0

Combine like terms: w2 + 4w2 = 5w2
-6 + 6w + 5w2 = 0

Solving
-6 + 6w + 5w2 = 0

Solving for variable 'w'.

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

Divide each side by '5'.
-1.2 + 1.2w + w2 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + 1.2w + 1.2 + w2 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + 1.2w + w2 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + 1.2w + w2 = 0 + 1.2
1.2w + w2 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
1.2w + w2 = 1.2

The w term is 1.2w.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2w + 0.36 + w2 = 1.2 + 0.36

Reorder the terms:
0.36 + 1.2w + w2 = 1.2 + 0.36

Combine like terms: 1.2 + 0.36 = 1.56
0.36 + 1.2w + w2 = 1.56

Factor a perfect square on the left side:
(w + 0.6)(w + 0.6) = 1.56

Calculate the square root of the right side: 1.2489996

Break this problem into two subproblems by setting 
(w + 0.6) equal to 1.2489996 and -1.2489996.

Subproblem 1

w + 0.6 = 1.2489996 Simplifying w + 0.6 = 1.2489996 Reorder the terms: 0.6 + w = 1.2489996 Solving 0.6 + w = 1.2489996 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + w = 1.2489996 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + w = 1.2489996 + -0.6 w = 1.2489996 + -0.6 Combine like terms: 1.2489996 + -0.6 = 0.6489996 w = 0.6489996 Simplifying w = 0.6489996

Subproblem 2

w + 0.6 = -1.2489996 Simplifying w + 0.6 = -1.2489996 Reorder the terms: 0.6 + w = -1.2489996 Solving 0.6 + w = -1.2489996 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + w = -1.2489996 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + w = -1.2489996 + -0.6 w = -1.2489996 + -0.6 Combine like terms: -1.2489996 + -0.6 = -1.8489996 w = -1.8489996 Simplifying w = -1.8489996

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.6489996, -1.8489996}

See similar equations:

| 4.29x^2-10.88+3.57=0 | | sqrtx+3=2x | | m+10/3=1 | | 5x^2-5x+3= | | (4a+9)(5a^2-7a+6)= | | -3x^4-9x^3=0 | | 2y+2x+12=180 | | 6x+36+2x+60=90 | | 100=-16t^2+45t+200 | | 6x+36+2x+60=180 | | (5a+2)x(2a^2-2a+7)= | | .15*x=280 | | .15*x=28 | | 7-5x=5-7 | | x^5-x^4+x^3=x^2 | | 5x+2x=-32+20+12 | | 15+6=-3(4x-7) | | 0.25x^2-x-1.5=0 | | 3(48-6y)+2y=0 | | 9-(2x-8)=9-3x | | -3q^2+5q-12=0 | | -3q+15q-12=0 | | 2(n-8)-(-2n-1)=3n | | 2x-3(4)=6 | | -3+4a=16 | | 4x+15y=16 | | 7(-12)= | | -67=6y-1 | | -44+25= | | (11x+2)+(5x+10)=122 | | y+3=2(y-3) | | 2+4a=13 |

Equations solver categories