Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

rios0912bre

  • 3 years ago

write this trinomial in factored form? 7s^2-2s-5

  • This Question is Closed
  1. ZeHanz
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Begin with (7s ....)(s ....), because if you FOIL again, only 7s*s=7s² (F) But... that means the (L) last two numbers multiplied should be -5. That doesn't leave much options...

  2. campbell_st
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    in a quadratic \[ax^2 + bx + c\] multiply a and c so in your question 7 *(-5) = -35 find the factors of 35 that add to - 2 ....... -7, 5 so them write your binomials as |dw:1359919120501:dw| remove the common factor from the 1st binomial and you'll see it cancels with the denominator so whats left is the answer.

  3. ZeHanz
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Just experiment with 5 and -1 or -5 and 1...

  4. campbell_st
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oops should be s.... and the method works every time and easier than guess and check...

  5. ZeHanz
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @rios0912bre: have you found the answer you were looking for?

  6. rios0912bre
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    havent worked the problem out yet since i gave up earlier but i will check it out here in a few thanks :)

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy