what must be multiplied to 3x + 7y to get 9x² – 49y²? help.​

Question

what must be multiplied to 3x + 7y to get 9x² – 49y²?

help.​

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Vodka 6 months 2021-07-30T15:26:29+00:00 2 Answers 8 views 0

Answers ( )

    0
    2021-07-30T15:27:59+00:00

    Answer:

    square the whole equation

    Step-by-step explanation:

    so, it will change from (3x + 7y)² to 9x² – 49y²

    I hope this helps a little bit.

    0
    2021-07-30T15:28:00+00:00

    Answer:

    (3x – 7y)

    Step-by-step explanation:

    we know that

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

    => (a + b) = (3x + 7y)

    =>. (a^2 b^2) = (9x^2 49y^2)

    => so, (a b).= (3x 7y)

    hope it helps

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