Jordan has an auto loan at a bank and makes monthly payments. He pays different amounts each month, but he can approximate the total amount he owes the bank with the equation y = -160x + 1650, where y is the total amount owed and x is the number of months in the loan repayment. Which statement is true based on the equation?

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

i don't know, but that looks pretty bad. my school passed us unless we failed in all the subjects, but idk abt ur school's rules.

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