factoring

Question: 30x^3 + 18x^2 - 5x - 3

My Answer: 6x^2(5x+3)(-5x-3)

Is that right. If not can you please correct my answer and tell me what to do! Thanks :)

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  1. it's wrong

    you have
    6x²(5x+3)-(5x+3)
    and you can facorize it

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  2. So what is the right answer?

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  3. (5x+3)(6x²-1)

    or
    (5x+3)(sqrt(6)x-1)(sqrt(6)x+1)

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  4. I believe mk-tintin intended to write:
    (5x+3)(6x^2-1)

    which can be further factored to obtain:
    (5x+3)(sqrt(6)x-1)(sqrt(6)x+1)

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