b^2+4bg-21g^2=0

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Solution for b^2+4bg-21g^2=0 equation:


Simplifying
b2 + 4bg + -21g2 = 0

Reorder the terms:
4bg + b2 + -21g2 = 0

Solving
4bg + b2 + -21g2 = 0

Solving for variable 'b'.

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

Subproblem 1

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

Subproblem 2

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

Solution

b = {3g, -7g}

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