Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

rebecca1233

  • 3 years ago

What are the solutions of x^2 + 8x − 20 = 0? Show all work for full credit.

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

    To solve x^2 + 8x − 20 = 0 I would factor it to find the factors: first, notice the -20, that means the two factors will be opposite signs second, the +8 (on the x term) means the larger factor is plus third, list the factors of 20 1,20 2,10 4,5 does any pair when subtracted give us +8? if so, that is the pair to use : (x-2)(x+10)= 0 now solve for x: either x-2=0 or x+10=0

  2. muhammad9t5
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    x^2+10x-2x-20=0 x(x+10)-2(x+10)=0 (x+10)(x-2)=0 either or x+10=0 x-2=0 x=-10 x=2

  3. 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