David has 400 yards of fencing and wishes to enclose a rectanghlar area against a pre-existing fence.
What equation should David use to help. him maximize the area?
f(x)=x(400-2x)
f(x)=x(400+2x)
f(x)=2x(400-x)
f(x)=2x(400+x)

p = 6s

step-by-step explanation:

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).

the answer is 8.64

step-by-step explanation:

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