g^2+7g=18

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Solution for g^2+7g=18 equation:


Simplifying
g2 + 7g = 18

Reorder the terms:
7g + g2 = 18

Solving
7g + g2 = 18

Solving for variable 'g'.

Reorder the terms:
-18 + 7g + g2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 7g + g2 = 0

Factor a trinomial.
(-9 + -1g)(2 + -1g) = 0

Subproblem 1

Set the factor '(-9 + -1g)' equal to zero and attempt to solve: Simplifying -9 + -1g = 0 Solving -9 + -1g = 0 Move all terms containing g to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1g = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1g = 0 + 9 -1g = 0 + 9 Combine like terms: 0 + 9 = 9 -1g = 9 Divide each side by '-1'. g = -9 Simplifying g = -9

Subproblem 2

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

Solution

g = {-9, 2}

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