anonymous
  • anonymous
HELP RATIONALIZE
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[(7+\sqrt{2})(8-3\sqrt{2})\]
Xishem
  • Xishem
Use FOIL.
anonymous
  • anonymous
Whats that

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anonymous
  • anonymous
\[56-13\sqrt{2}-6\]
anonymous
  • anonymous
First Outside Inside Last Say you have (x+y)(x+y). You take the first two and multiply them together, then go to the outside and multiply those together and add, and then multiply the last two. So the foil of (x+y)(x+y)=x^2+xy+xy+y^2=x^2+2xy+y^2
anonymous
  • anonymous
you sure cuss it doesnt show that on my answe rsheet
Xishem
  • Xishem
Multiply the FIRST terms of the two expressions, then the OUTER terms of the two expressions, then the INNER terms of the two expressions, and finally the LAST terms of the two expressions. Then add all of these terms together.
anonymous
  • anonymous
Maybe not. What does it show?
Xishem
  • Xishem
Did you simplify it?

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