(b-3)(b-3)=6

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Solution for (b-3)(b-3)=6 equation:


Simplifying
(b + -3)(b + -3) = 6

Reorder the terms:
(-3 + b)(b + -3) = 6

Reorder the terms:
(-3 + b)(-3 + b) = 6

Multiply (-3 + b) * (-3 + b)
(-3(-3 + b) + b(-3 + b)) = 6
((-3 * -3 + b * -3) + b(-3 + b)) = 6
((9 + -3b) + b(-3 + b)) = 6
(9 + -3b + (-3 * b + b * b)) = 6
(9 + -3b + (-3b + b2)) = 6

Combine like terms: -3b + -3b = -6b
(9 + -6b + b2) = 6

Solving
9 + -6b + b2 = 6

Solving for variable 'b'.

Reorder the terms:
9 + -6 + -6b + b2 = 6 + -6

Combine like terms: 9 + -6 = 3
3 + -6b + b2 = 6 + -6

Combine like terms: 6 + -6 = 0
3 + -6b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -6b + -3 + b2 = 0 + -3

Reorder the terms:
3 + -3 + -6b + b2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -6b + b2 = 0 + -3
-6b + b2 = 0 + -3

Combine like terms: 0 + -3 = -3
-6b + b2 = -3

The b term is -6b.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6b + 9 + b2 = -3 + 9

Reorder the terms:
9 + -6b + b2 = -3 + 9

Combine like terms: -3 + 9 = 6
9 + -6b + b2 = 6

Factor a perfect square on the left side:
(b + -3)(b + -3) = 6

Calculate the square root of the right side: 2.449489743

Break this problem into two subproblems by setting 
(b + -3) equal to 2.449489743 and -2.449489743.

Subproblem 1

b + -3 = 2.449489743 Simplifying b + -3 = 2.449489743 Reorder the terms: -3 + b = 2.449489743 Solving -3 + b = 2.449489743 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + b = 2.449489743 + 3 Combine like terms: -3 + 3 = 0 0 + b = 2.449489743 + 3 b = 2.449489743 + 3 Combine like terms: 2.449489743 + 3 = 5.449489743 b = 5.449489743 Simplifying b = 5.449489743

Subproblem 2

b + -3 = -2.449489743 Simplifying b + -3 = -2.449489743 Reorder the terms: -3 + b = -2.449489743 Solving -3 + b = -2.449489743 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + b = -2.449489743 + 3 Combine like terms: -3 + 3 = 0 0 + b = -2.449489743 + 3 b = -2.449489743 + 3 Combine like terms: -2.449489743 + 3 = 0.550510257 b = 0.550510257 Simplifying b = 0.550510257

Solution

The solution to the problem is based on the solutions from the subproblems. b = {5.449489743, 0.550510257}

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