(b-2)*(b-7)=

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Solution for (b-2)*(b-7)= equation:


Simplifying
(b + -2)(b + -7) = 0

Reorder the terms:
(-2 + b)(b + -7) = 0

Reorder the terms:
(-2 + b)(-7 + b) = 0

Multiply (-2 + b) * (-7 + b)
(-2(-7 + b) + b(-7 + b)) = 0
((-7 * -2 + b * -2) + b(-7 + b)) = 0
((14 + -2b) + b(-7 + b)) = 0
(14 + -2b + (-7 * b + b * b)) = 0
(14 + -2b + (-7b + b2)) = 0

Combine like terms: -2b + -7b = -9b
(14 + -9b + b2) = 0

Solving
14 + -9b + b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(2 + -1b)(7 + -1b) = 0

Subproblem 1

Set the factor '(2 + -1b)' equal to zero and attempt to solve: Simplifying 2 + -1b = 0 Solving 2 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1b = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1b = 0 + -2 -1b = 0 + -2 Combine like terms: 0 + -2 = -2 -1b = -2 Divide each side by '-1'. b = 2 Simplifying b = 2

Subproblem 2

Set the factor '(7 + -1b)' equal to zero and attempt to solve: Simplifying 7 + -1b = 0 Solving 7 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1b = 0 + -7 -1b = 0 + -7 Combine like terms: 0 + -7 = -7 -1b = -7 Divide each side by '-1'. b = 7 Simplifying b = 7

Solution

b = {2, 7}

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