(3b-4)(b-7)=

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Solution for (3b-4)(b-7)= equation:


Simplifying
(3b + -4)(b + -7) = 0

Reorder the terms:
(-4 + 3b)(b + -7) = 0

Reorder the terms:
(-4 + 3b)(-7 + b) = 0

Multiply (-4 + 3b) * (-7 + b)
(-4(-7 + b) + 3b * (-7 + b)) = 0
((-7 * -4 + b * -4) + 3b * (-7 + b)) = 0
((28 + -4b) + 3b * (-7 + b)) = 0
(28 + -4b + (-7 * 3b + b * 3b)) = 0
(28 + -4b + (-21b + 3b2)) = 0

Combine like terms: -4b + -21b = -25b
(28 + -25b + 3b2) = 0

Solving
28 + -25b + 3b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(4 + -3b)(7 + -1b) = 0

Subproblem 1

Set the factor '(4 + -3b)' equal to zero and attempt to solve: Simplifying 4 + -3b = 0 Solving 4 + -3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3b = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3b = 0 + -4 -3b = 0 + -4 Combine like terms: 0 + -4 = -4 -3b = -4 Divide each side by '-3'. b = 1.333333333 Simplifying b = 1.333333333

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 = {1.333333333, 7}

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