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anonymous

  • 5 years ago

Equation in the response

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  1. anonymous
    • 5 years ago
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    \[(2+3\sqrt{10})(4-5\sqrt{5})\]

  2. anonymous
    • 5 years ago
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    Foil it out.

  3. anonymous
    • 5 years ago
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    how do i dow the sqrt 10 and sqrt 5 with foil?

  4. anonymous
    • 5 years ago
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    Multiply them.

  5. anonymous
    • 5 years ago
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    \[3\sqrt{10} \times -5\sqrt{5} = (3 \times -5)(\sqrt{10}\times\sqrt{5})\]

  6. anonymous
    • 5 years ago
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    \[=-15 \sqrt{50} = -15(5\sqrt{2}) = -75\sqrt{2}\]

  7. anonymous
    • 5 years ago
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    Then just add that along with your other terms.

  8. anonymous
    • 5 years ago
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    so its \[-75\sqrt{2}\]

  9. anonymous
    • 5 years ago
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    Well, that's the result of \[3\sqrt{10} \times -5\sqrt{5}\]

  10. anonymous
    • 5 years ago
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    You still need to foil the rest of your terms.

  11. anonymous
    • 5 years ago
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    foiled i got \[8\sqrt{100}\]

  12. radar
    • 5 years ago
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    You have a problem whose solution ain't gonna be pretty!

  13. anonymous
    • 5 years ago
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    wait what is the answer?

  14. radar
    • 5 years ago
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    Well you got one of the terms, just continue your multiplication, next multiply the \[-5\sqrt{5}\times 2\]

  15. radar
    • 5 years ago
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    Your answer will have 4 terms, one is the\[-75\sqrt{2}\]which polpak and you worked out, now work the one above and you will be half way there!

  16. radar
    • 5 years ago
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    A loss is a gain without effort.

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spraguer (Moderator)
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