w^2-10w+25=45

Simple and best practice solution for w^2-10w+25=45 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+25=45 equation:


Simplifying
w2 + -10w + 25 = 45

Reorder the terms:
25 + -10w + w2 = 45

Solving
25 + -10w + w2 = 45

Solving for variable 'w'.

Reorder the terms:
25 + -45 + -10w + w2 = 45 + -45

Combine like terms: 25 + -45 = -20
-20 + -10w + w2 = 45 + -45

Combine like terms: 45 + -45 = 0
-20 + -10w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '20' to each side of the equation.
-20 + -10w + 20 + w2 = 0 + 20

Reorder the terms:
-20 + 20 + -10w + w2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -10w + w2 = 0 + 20
-10w + w2 = 0 + 20

Combine like terms: 0 + 20 = 20
-10w + w2 = 20

The w term is -10w.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10w + 25 + w2 = 20 + 25

Reorder the terms:
25 + -10w + w2 = 20 + 25

Combine like terms: 20 + 25 = 45
25 + -10w + w2 = 45

Factor a perfect square on the left side:
(w + -5)(w + -5) = 45

Calculate the square root of the right side: 6.708203933

Break this problem into two subproblems by setting 
(w + -5) equal to 6.708203933 and -6.708203933.

Subproblem 1

w + -5 = 6.708203933 Simplifying w + -5 = 6.708203933 Reorder the terms: -5 + w = 6.708203933 Solving -5 + w = 6.708203933 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + w = 6.708203933 + 5 Combine like terms: -5 + 5 = 0 0 + w = 6.708203933 + 5 w = 6.708203933 + 5 Combine like terms: 6.708203933 + 5 = 11.708203933 w = 11.708203933 Simplifying w = 11.708203933

Subproblem 2

w + -5 = -6.708203933 Simplifying w + -5 = -6.708203933 Reorder the terms: -5 + w = -6.708203933 Solving -5 + w = -6.708203933 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + w = -6.708203933 + 5 Combine like terms: -5 + 5 = 0 0 + w = -6.708203933 + 5 w = -6.708203933 + 5 Combine like terms: -6.708203933 + 5 = -1.708203933 w = -1.708203933 Simplifying w = -1.708203933

Solution

The solution to the problem is based on the solutions from the subproblems. w = {11.708203933, -1.708203933}

See similar equations:

| 18+x-87y*(l+32)=76548 | | -y-4x+11y= | | 66=48+x | | x^2+3xy-y^2=11 | | 5-ln(x+3)=2 | | 18x-9x+27= | | 20y=20x+b | | X^2+10x+42=-3x+2 | | x^2+0.000018-2.8=0 | | 6.5=2/5x | | 6.5=0.4x | | 7w/7w4 | | z/2 | | 5x(-2y)= | | 7+3g=13 | | 5x-1.2=4x+1.2 | | 4u-11=9 | | 180(n-2)/2=140 | | f(x)=-3x^2-6 | | 4s-1=19 | | 6x-6(16-3x)=5 | | 5000=4+(n-1)*23+11 | | 6x3-15x/3x | | 28y+6=25y+26 | | y=5x+1andy+5x-8 | | (3(5x-7)/2)-4=(2(2x-3)/3)-4/9 | | 3-4x+2x-x+9=39 | | 6y-14=3y-7 | | -2x+7x=36 | | x^2-8x=242 | | 2y^3=3 | | 2b+8=56 |

Equations solver categories