l(20-l)=36

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Solution for l(20-l)=36 equation:


Simplifying
l(20 + -1l) = 36
(20 * l + -1l * l) = 36
(20l + -1l2) = 36

Solving
20l + -1l2 = 36

Solving for variable 'l'.

Reorder the terms:
-36 + 20l + -1l2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + 20l + -1l2 = 0

Factor a trinomial.
(-18 + l)(2 + -1l) = 0

Subproblem 1

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

Subproblem 2

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

Solution

l = {18, 2}

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