anonymous
  • anonymous
t^2+15t+50 Factor the trinomial. I am not sure how to do this please help.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
what are two numbers a and b so that: a*b=50 a+b=15 ?
anonymous
  • anonymous
I got 5t^2(3t+10) and that was incorrect
anonymous
  • anonymous
no that would multiply to 15t^3+50t^2

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anonymous
  • anonymous
so two numbers that multiply to 50 and add to 15 are 5 and 10. So we can factor the trinomial: (x+5)(x+10)
anonymous
  • anonymous
does this make sense or should I explain why I did this?
anonymous
  • anonymous
well that answer was not correct
anonymous
  • anonymous
(t+5)(t+10) is correct
anonymous
  • anonymous
ok I was putting x sry
anonymous
  • anonymous
my fault i wrote x too
anonymous
  • anonymous
t^2+15t+50 You must find a pair of factors of 50 that sum to 15 5 and 10 Now replace the 15t with 5t + 10t t^2+5t + 10t +50 now pair off and factorise... (t^2+5t) + (10t +50) giving ... t(t + 5) + 10(t + 5) answer = (t + 5)(t + 10)

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