b^2-16b+64=19

Simple and best practice solution for b^2-16b+64=19 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^2-16b+64=19 equation:


Simplifying
b2 + -16b + 64 = 19

Reorder the terms:
64 + -16b + b2 = 19

Solving
64 + -16b + b2 = 19

Solving for variable 'b'.

Reorder the terms:
64 + -19 + -16b + b2 = 19 + -19

Combine like terms: 64 + -19 = 45
45 + -16b + b2 = 19 + -19

Combine like terms: 19 + -19 = 0
45 + -16b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -16b + -45 + b2 = 0 + -45

Reorder the terms:
45 + -45 + -16b + b2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -16b + b2 = 0 + -45
-16b + b2 = 0 + -45

Combine like terms: 0 + -45 = -45
-16b + b2 = -45

The b term is -16b.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16b + 64 + b2 = -45 + 64

Reorder the terms:
64 + -16b + b2 = -45 + 64

Combine like terms: -45 + 64 = 19
64 + -16b + b2 = 19

Factor a perfect square on the left side:
(b + -8)(b + -8) = 19

Calculate the square root of the right side: 4.358898944

Break this problem into two subproblems by setting 
(b + -8) equal to 4.358898944 and -4.358898944.

Subproblem 1

b + -8 = 4.358898944 Simplifying b + -8 = 4.358898944 Reorder the terms: -8 + b = 4.358898944 Solving -8 + b = 4.358898944 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + b = 4.358898944 + 8 Combine like terms: -8 + 8 = 0 0 + b = 4.358898944 + 8 b = 4.358898944 + 8 Combine like terms: 4.358898944 + 8 = 12.358898944 b = 12.358898944 Simplifying b = 12.358898944

Subproblem 2

b + -8 = -4.358898944 Simplifying b + -8 = -4.358898944 Reorder the terms: -8 + b = -4.358898944 Solving -8 + b = -4.358898944 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + b = -4.358898944 + 8 Combine like terms: -8 + 8 = 0 0 + b = -4.358898944 + 8 b = -4.358898944 + 8 Combine like terms: -4.358898944 + 8 = 3.641101056 b = 3.641101056 Simplifying b = 3.641101056

Solution

The solution to the problem is based on the solutions from the subproblems. b = {12.358898944, 3.641101056}

See similar equations:

| 4x=35 | | 67c-61+39-184=670 | | 65x+6=176 | | 26=4m-8 | | 9d+32=41 | | 13+2= | | 3-6v=6+5v | | 8y^2-12y+4=y+10 | | [30+2x(19-10)]= | | 10=6c+4 | | -7(3-6x)+7x=-7+2(x-7) | | 30+2x(9)= | | 12x^2-12y+4=y+10 | | 4s-3=9 | | 4x-16=12x+36 | | 3x-(x+4)=-7(x+7) | | 3t^2+10t+8= | | k^2+8k=84 | | x-5= | | w^2-18r+56=0 | | 4a+7= | | -4(b+5)=-8(1-b) | | -12y+16=4y+16 | | v^2+3vw-2w(4v+6)= | | 4w^2=9w+9 | | -7x=-22 | | 4a+3-2a+4=5a-7+a | | -(4m+6)-m=2(-6-m) | | 9x-8=x^2 | | .67(9x-3)=-4+8x | | 3(m+1)=-3(m+1) | | 18=6a |

Equations solver categories