anonymous
  • anonymous
Polynomials (Question in image)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
First, substitute 5 for x in the 2 equations: \(\ \Huge (5)+6; 9(5)+6).\)
anonymous
  • anonymous
do you follow me?

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anonymous
  • anonymous
yes
anonymous
  • anonymous
wouldn't it be easier to multiply with x; create the polynomial, then substitute?
anonymous
  • anonymous
Perhaps, but there is less room for error using this method. I'll show you how find the polynomial, as well. Now, the Volume is Height x Width x Length: So the volume is: \[\ 8\times11\times51= Volume\]
anonymous
  • anonymous
Okay..
anonymous
  • anonymous
Now, The Easiest Way to Multiply is to Use a Table, to Foil the two polynomials: |dw:1338768144332:dw|
anonymous
  • anonymous
So, That gives us \(\ \Huge 9x^2+60x+36 \). There's also an \(\ \Huge 8 \), so \(\ \Huge 8(9x^2+60x+36) \). You can factor a three out of the parenthesis, because 3 is a factor of all three terms. That gives you for a final answer: \(\ \Huge 24(3x^2+20x+12).\) Did you understand that?
anonymous
  • anonymous
Now, you would substitute 5 in for x, getting your final volume.
anonymous
  • anonymous
why 60?
anonymous
  • anonymous
oh, i see.
anonymous
  • anonymous
awesome, thanks a ton!
anonymous
  • anonymous
Your Welcome. @pablobegins

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