Algebra II

am i correct?

1(2x)^3 + 3(2x)^2*(-5y)^1 + 3(2x)^1*(-5y)^2 + 1(-5y)^3

answer

(2x-5y)^3

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  1. Anything times 1 or to the first power is itself. Unless you have typos, here is what I get:

    (2x)^3 + 12x^2 * (-5y) + 6x * 25y^2 - 125y^3 =

    8x^3 - 60x^2y + 150xy^2 - 125y^3

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  2. luckily, the answers agree!

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  3. Ok,thank you guys! :)

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