b^2-10b-16=0

Simple and best practice solution for b^2-10b-16=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 b^2-10b-16=0 equation:


Simplifying
b2 + -10b + -16 = 0

Reorder the terms:
-16 + -10b + b2 = 0

Solving
-16 + -10b + b2 = 0

Solving for variable 'b'.

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + -10b + 16 + b2 = 0 + 16

Reorder the terms:
-16 + 16 + -10b + b2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -10b + b2 = 0 + 16
-10b + b2 = 0 + 16

Combine like terms: 0 + 16 = 16
-10b + b2 = 16

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

Add '25' to each side of the equation.
-10b + 25 + b2 = 16 + 25

Reorder the terms:
25 + -10b + b2 = 16 + 25

Combine like terms: 16 + 25 = 41
25 + -10b + b2 = 41

Factor a perfect square on the left side:
(b + -5)(b + -5) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(b + -5) equal to 6.403124237 and -6.403124237.

Subproblem 1

b + -5 = 6.403124237 Simplifying b + -5 = 6.403124237 Reorder the terms: -5 + b = 6.403124237 Solving -5 + b = 6.403124237 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + b = 6.403124237 + 5 Combine like terms: -5 + 5 = 0 0 + b = 6.403124237 + 5 b = 6.403124237 + 5 Combine like terms: 6.403124237 + 5 = 11.403124237 b = 11.403124237 Simplifying b = 11.403124237

Subproblem 2

b + -5 = -6.403124237 Simplifying b + -5 = -6.403124237 Reorder the terms: -5 + b = -6.403124237 Solving -5 + b = -6.403124237 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + b = -6.403124237 + 5 Combine like terms: -5 + 5 = 0 0 + b = -6.403124237 + 5 b = -6.403124237 + 5 Combine like terms: -6.403124237 + 5 = -1.403124237 b = -1.403124237 Simplifying b = -1.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. b = {11.403124237, -1.403124237}

See similar equations:

| 18y^2-57y=-35 | | 8x+3=2x-5 | | 21x^2+13x=8 | | x^2+10=-7 | | 4x-12=3x-6 | | 4x-12=-3x-6 | | -3x+5=1x-5 | | y^4-13y^3=42y^2 | | 6=.5+2 | | 2m-3+m=15 | | 24n(n-1)=0 | | x^2-17x+84=0 | | 3x^2-x-6=0 | | -12x-4(5+10x)=11(-3x+12) | | 9x=5x+9x-15 | | c(c-17)=0 | | 3x+6=2x+9 | | 4=-0.8 | | 5x+5=5x+x+2 | | 10x+6=6x-8+10x-16 | | 12*11-20= | | 16x-9=5x+12x-20 | | 10x+9-11-x=-2(2x+4)-3(2x-2) | | 5*1+2*(3-1)=6 | | n-14n-6=-5 | | n-14n-6=-6 | | 4x+3=5x+4x-3 | | 5=2x+5x-2 | | 5*5-(25/5)=20 | | 5*5-(25/5)= | | 4=4x-2+2x | | 75=3(6x-5) |

Equations solver categories