Algebra

posted by HI

hello.i have to factor this expression.
3y^2-16y-12

i did my work and i got (y-4)(y+1)
is it right?

  1. Damon

    (3 y + 2)(y - 6)

  2. HI

    thank you!

  3. Damon

    You are welcome.

  4. HI

    can you show how u got that answer please???

  5. Damon

    Sure, fooled around with factors of 12
    3 and 4 did not work, 1 and 12 did not work, so tried 6 and 2

  6. Damon

    I wrote

    (3 y - ) (y + )
    and tried factors
    soon saw needed
    (3 y + ) (y - )

    then fooled with 3 and 4 and then 6 and 2 until it worked

  7. HI

    i messed up on my math . i used -12 and 3. now i know why i messed up. thank you again.:)

  8. Damon

    No problem :)

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