Question 681878
A rectangular swimming pool has an area of 18x^2 + 33x - 40.
Find an expression for the perimeter of this pool.
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It might be 18x^2 + 33x - 40 by 1, making the perimeter
{{{36x^2 + 66x - 78}}}
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You're probably expected to factor that tho.
{{{18x^2 + 33x - 40 = (6x - 5)*(3x + 8)}}}
--> {{{P = 2*((6x - 5) + (3x + 8))}}}
P = 18x + 6