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anonymous

  • 4 years ago

how would one do this problem?: (,/11 - ,/7)^2? it should be read as parenthesis, the square root of eleven minus the square root of 7 parenthesis squared

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  1. anonymous
    • 4 years ago
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    satellite please go back to my question for a sec

  2. UnkleRhaukus
    • 4 years ago
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    \[(√11-√7)^2\] \[=11-2√11√7+7\] \[=18-2√77\]

  3. UnkleRhaukus
    • 4 years ago
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    did you get that formula right satellite?

  4. anonymous
    • 4 years ago
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    heck no i was wrong!!

  5. anonymous
    • 4 years ago
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    unkle has it , ignore me. i messed up

  6. UnkleRhaukus
    • 4 years ago
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    \[(a-b)^2=(a-b)(a-b)=a^2-2ab+b^2\]

  7. anonymous
    • 4 years ago
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    how do u get the 2 X ,/77? i tried foil, but it wont give me the same result

  8. anonymous
    • 4 years ago
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    nvm i gotcha

  9. anonymous
    • 4 years ago
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    thanks

  10. UnkleRhaukus
    • 4 years ago
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    so you can leave the solution as =18−2√77 or =18-2√7√11

  11. anonymous
    • 4 years ago
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    okay thanks.

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