u^2=8u-10

Simple and best practice solution for u^2=8u-10 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 u^2=8u-10 equation:


Simplifying
u2 = 8u + -10

Reorder the terms:
u2 = -10 + 8u

Solving
u2 = -10 + 8u

Solving for variable 'u'.

Reorder the terms:
10 + -8u + u2 = -10 + 8u + 10 + -8u

Reorder the terms:
10 + -8u + u2 = -10 + 10 + 8u + -8u

Combine like terms: -10 + 10 = 0
10 + -8u + u2 = 0 + 8u + -8u
10 + -8u + u2 = 8u + -8u

Combine like terms: 8u + -8u = 0
10 + -8u + u2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + -8u + -10 + u2 = 0 + -10

Reorder the terms:
10 + -10 + -8u + u2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -8u + u2 = 0 + -10
-8u + u2 = 0 + -10

Combine like terms: 0 + -10 = -10
-8u + u2 = -10

The u term is -8u.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8u + 16 + u2 = -10 + 16

Reorder the terms:
16 + -8u + u2 = -10 + 16

Combine like terms: -10 + 16 = 6
16 + -8u + u2 = 6

Factor a perfect square on the left side:
(u + -4)(u + -4) = 6

Calculate the square root of the right side: 2.449489743

Break this problem into two subproblems by setting 
(u + -4) equal to 2.449489743 and -2.449489743.

Subproblem 1

u + -4 = 2.449489743 Simplifying u + -4 = 2.449489743 Reorder the terms: -4 + u = 2.449489743 Solving -4 + u = 2.449489743 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + u = 2.449489743 + 4 Combine like terms: -4 + 4 = 0 0 + u = 2.449489743 + 4 u = 2.449489743 + 4 Combine like terms: 2.449489743 + 4 = 6.449489743 u = 6.449489743 Simplifying u = 6.449489743

Subproblem 2

u + -4 = -2.449489743 Simplifying u + -4 = -2.449489743 Reorder the terms: -4 + u = -2.449489743 Solving -4 + u = -2.449489743 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + u = -2.449489743 + 4 Combine like terms: -4 + 4 = 0 0 + u = -2.449489743 + 4 u = -2.449489743 + 4 Combine like terms: -2.449489743 + 4 = 1.550510257 u = 1.550510257 Simplifying u = 1.550510257

Solution

The solution to the problem is based on the solutions from the subproblems. u = {6.449489743, 1.550510257}

See similar equations:

| 6v=42 | | (x+1)+(x-1)=117 | | 49(k-7.30)=22 | | 6=42 | | 5=13k | | -6+4x=-1 | | P=1000-5Q | | 35.5/10° | | 3x+2.9=2x-7.4 | | x+1+x-1=117 | | 24x^4y^2z^0/18x^3y^4 | | 5(2x-8)=2(6x+12) | | 3p+0=5p+4 | | p(x)=-ln(x+1)-2 | | 5=r+1x | | 300(8)=x | | 2m-10=8 | | 4(1-5t)=-2-44t | | 6(x-4)-2=23-5x-1+11x | | 6(x-4)-2=23-5x-111x | | 7r+1r=8r+7 | | (-13/2)-7r=(-5r/4)-1/4(-9r-2) | | -2(2x-8)+6=-4x+22 | | 2x+15-4=1 | | -(2m^5n^4/14m^5n^5)*n^6 | | 25x-25y= | | 5x+1=2(2x-2)+5 | | r=(3.75-.25*1.35)(.12) | | 12-3z= | | -3+5(x-2)=13x+5-8x | | 6r+5=8r+16-r | | r=(p-.25*r)(.12) |

Equations solver categories