g^2-3g=40

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Solution for g^2-3g=40 equation:


Simplifying
g2 + -3g = 40

Reorder the terms:
-3g + g2 = 40

Solving
-3g + g2 = 40

Solving for variable 'g'.

Reorder the terms:
-40 + -3g + g2 = 40 + -40

Combine like terms: 40 + -40 = 0
-40 + -3g + g2 = 0

Factor a trinomial.
(-5 + -1g)(8 + -1g) = 0

Subproblem 1

Set the factor '(-5 + -1g)' equal to zero and attempt to solve: Simplifying -5 + -1g = 0 Solving -5 + -1g = 0 Move all terms containing g to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1g = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1g = 0 + 5 -1g = 0 + 5 Combine like terms: 0 + 5 = 5 -1g = 5 Divide each side by '-1'. g = -5 Simplifying g = -5

Subproblem 2

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

Solution

g = {-5, 8}

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