Math help polynomial

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multiply the following polynomial -3x(y^2+2y^2)
answer choices

3xy^2-6xy^2'
-3xy^2-gxy^2
-3xy^2+5y^2
-9xy^2

The last one was the answer. Can you tell me how the answer was solved? Thanks!

  • Math help polynomial -

    -3x(3 y^2) = -9 x y^2

  • Math help polynomial -

    Do operations inside parentheses first.

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