(x)(x+7)=198

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Solution for (x)(x+7)=198 equation:


Simplifying
(x)(x + 7) = 198

Reorder the terms:
x(7 + x) = 198
(7 * x + x * x) = 198
(7x + x2) = 198

Solving
7x + x2 = 198

Solving for variable 'x'.

Reorder the terms:
-198 + 7x + x2 = 198 + -198

Combine like terms: 198 + -198 = 0
-198 + 7x + x2 = 0

Factor a trinomial.
(-18 + -1x)(11 + -1x) = 0

Subproblem 1

Set the factor '(-18 + -1x)' equal to zero and attempt to solve: Simplifying -18 + -1x = 0 Solving -18 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + -1x = 0 + 18 Combine like terms: -18 + 18 = 0 0 + -1x = 0 + 18 -1x = 0 + 18 Combine like terms: 0 + 18 = 18 -1x = 18 Divide each side by '-1'. x = -18 Simplifying x = -18

Subproblem 2

Set the factor '(11 + -1x)' equal to zero and attempt to solve: Simplifying 11 + -1x = 0 Solving 11 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -1x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -1x = 0 + -11 -1x = 0 + -11 Combine like terms: 0 + -11 = -11 -1x = -11 Divide each side by '-1'. x = 11 Simplifying x = 11

Solution

x = {-18, 11}

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