anonymous
  • anonymous
when the expression x^3+mx^2+nx-5 is divided by x+2 and x+3, the remainder are 2 and 13 respectively. Find the values m and n
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@Coolsector pls help again :)
anonymous
  • anonymous
so it is the same problem p(x) = x^3+mx^2+nx-5 so p(-2) = 2 p(-3) = 13
anonymous
  • anonymous
but i really want you to understand why and how to write those two : p(-2) = 2 p(-3) = 13

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anonymous
  • anonymous
p(-2) because x+2=0 transpose x=-2 p(-3) because x+3=0 x=-3
anonymous
  • anonymous
ok:)
anonymous
  • anonymous
ive got the answers 4m-2=15 and 9m-3n=45 is that correct?
anonymous
  • anonymous
i guess you meant 4m-2n=15
anonymous
  • anonymous
yup
anonymous
  • anonymous
so yes :)
anonymous
  • anonymous
value of m is 6? pls check
anonymous
  • anonymous
i dont know, you can find n now and then check them both together with the initial equations : p(-2) = 2 p(-3) = 13

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