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anonymous

  • 4 years ago

HELP RATIONALIZE

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  1. anonymous
    • 4 years ago
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    \[(7+\sqrt{2})(8-3\sqrt{2})\]

  2. Xishem
    • 4 years ago
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    Use FOIL.

  3. anonymous
    • 4 years ago
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    Whats that

  4. anonymous
    • 4 years ago
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    \[56-13\sqrt{2}-6\]

  5. anonymous
    • 4 years ago
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    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

  6. anonymous
    • 4 years ago
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    you sure cuss it doesnt show that on my answe rsheet

  7. Xishem
    • 4 years ago
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    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.

  8. anonymous
    • 4 years ago
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    Maybe not. What does it show?

  9. Xishem
    • 4 years ago
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    Did you simplify it?

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