what must be subtracted from 9a^2+25b^2 to make the remainder a perfect square​

Question

what must be subtracted from 9a^2+25b^2 to make the remainder a perfect square​

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Lyla 2 months 2021-11-28T15:47:53+00:00 1 Answer 0 views 0

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    2021-11-28T15:49:38+00:00

    Answer:

    ± 30ab

    Step-by-step explanation:

    There are two possible situations:

    1). 9a² – (+30ab) + 25b² = (3a – 5b)²

    2). 9a² – (– 30ab) + 25b² = (3a + 5b)²

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