(X)(X+8)=240

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Solution for (X)(X+8)=240 equation:


Simplifying
(X)(X + 8) = 240

Reorder the terms:
X(8 + X) = 240
(8 * X + X * X) = 240
(8X + X2) = 240

Solving
8X + X2 = 240

Solving for variable 'X'.

Reorder the terms:
-240 + 8X + X2 = 240 + -240

Combine like terms: 240 + -240 = 0
-240 + 8X + X2 = 0

Factor a trinomial.
(-20 + -1X)(12 + -1X) = 0

Subproblem 1

Set the factor '(-20 + -1X)' equal to zero and attempt to solve: Simplifying -20 + -1X = 0 Solving -20 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + -1X = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -1X = 0 + 20 -1X = 0 + 20 Combine like terms: 0 + 20 = 20 -1X = 20 Divide each side by '-1'. X = -20 Simplifying X = -20

Subproblem 2

Set the factor '(12 + -1X)' equal to zero and attempt to solve: Simplifying 12 + -1X = 0 Solving 12 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1X = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1X = 0 + -12 -1X = 0 + -12 Combine like terms: 0 + -12 = -12 -1X = -12 Divide each side by '-1'. X = 12 Simplifying X = 12

Solution

X = {-20, 12}

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