anonymous
  • anonymous
(n+6)(n+7) would the product of this be n^2+n+42??
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Nope. The product of the inner and outer terms don't add to be n.
anonymous
  • anonymous
ohh you add the inner terms instead of subtracting them
anonymous
  • anonymous
(a+b)(c+d) = (a+b)c + (a+b)d = ac + ad + bc + bd

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anonymous
  • anonymous
Use the FOIL method (First, Outer, Inner, Last). You multiply the two n's first (Your first terms), Then you multiply n & 7 (Your outer terms). Then you multiply n & 6 (Your inner terms) and then you multiply 6 & 7 (Your last terms)
anonymous
  • anonymous
You have to sum the products you get from the foil method. Sometimes it ends up being the sum of a negative number which leads to a middle term that's very small (or zero) but you're always adding these products together.

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