7b^2=-35b+168

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Solution for 7b^2=-35b+168 equation:


Simplifying
7b2 = -35b + 168

Reorder the terms:
7b2 = 168 + -35b

Solving
7b2 = 168 + -35b

Solving for variable 'b'.

Reorder the terms:
-168 + 35b + 7b2 = 168 + -35b + -168 + 35b

Reorder the terms:
-168 + 35b + 7b2 = 168 + -168 + -35b + 35b

Combine like terms: 168 + -168 = 0
-168 + 35b + 7b2 = 0 + -35b + 35b
-168 + 35b + 7b2 = -35b + 35b

Combine like terms: -35b + 35b = 0
-168 + 35b + 7b2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(-24 + 5b + b2) = 0

Factor a trinomial.
7((-8 + -1b)(3 + -1b)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-8 + -1b)' equal to zero and attempt to solve: Simplifying -8 + -1b = 0 Solving -8 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -1b = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -1b = 0 + 8 -1b = 0 + 8 Combine like terms: 0 + 8 = 8 -1b = 8 Divide each side by '-1'. b = -8 Simplifying b = -8

Subproblem 2

Set the factor '(3 + -1b)' equal to zero and attempt to solve: Simplifying 3 + -1b = 0 Solving 3 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1b = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1b = 0 + -3 -1b = 0 + -3 Combine like terms: 0 + -3 = -3 -1b = -3 Divide each side by '-1'. b = 3 Simplifying b = 3

Solution

b = {-8, 3}

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