anonymous
  • anonymous
Factor each trinomial below. Please show your work and check your answer. a^2 – 5a – 20
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Mathhelp346
  • Mathhelp346
|dw:1337737531550:dw|
anonymous
  • anonymous
Thanks. do you know how to do this
Mathhelp346
  • Mathhelp346
all you would need to do is come up with 2 binomials and then distribute to get the answer

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Mathhelp346
  • Mathhelp346
so if i gave you (a+b)(a+b), the answer would be a^2+ab+ba+b^2, or a^2+2ab+b^2
Mathhelp346
  • Mathhelp346
ok, give me 2 numbers
anonymous
  • anonymous
can you give me one please cause im quite confused so like x^2 -a -25 ?
Mathhelp346
  • Mathhelp346
um not exactly
anonymous
  • anonymous
can i use yours as one? cause im quite confused lol
Mathhelp346
  • Mathhelp346
so let's say you have (2+3)(4+5)
Mathhelp346
  • Mathhelp346
what would be your answer?
Mathhelp346
  • Mathhelp346
|dw:1337737956653:dw|
anonymous
  • anonymous
uhmm
Mathhelp346
  • Mathhelp346
|dw:1337737995662:dw|
anonymous
  • anonymous
times? 2 * 4 = 8
Mathhelp346
  • Mathhelp346
yes
anonymous
  • anonymous
& 3 *5 = 15
Mathhelp346
  • Mathhelp346
yes, and...?
anonymous
  • anonymous
so what would the end look like ?
anonymous
  • anonymous
(8+5) ?
anonymous
  • anonymous
(8+15)
Mathhelp346
  • Mathhelp346
Rebecca, there's still more. You need to distribute the 2 to both the 4 and 5. Same goes for the 3.
anonymous
  • anonymous
im so confused can you show me ?
Mathhelp346
  • Mathhelp346
So basically, you would be solving 2*4+2*5+3*4+3*5
Mathhelp346
  • Mathhelp346
|dw:1337738187066:dw|
anonymous
  • anonymous
simplifying?
Mathhelp346
  • Mathhelp346
actually, we need some x's. hold on.
anonymous
  • anonymous
the answer is 45
Mathhelp346
  • Mathhelp346
|dw:1337738245824:dw|
Mathhelp346
  • Mathhelp346
here
anonymous
  • anonymous
Thank you.. i got it :)
Mathhelp346
  • Mathhelp346
ok

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