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sisike

1. Write using exponents. (–4)(–4)

  • 11 months ago
  • 11 months ago

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  1. amistre64
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    multiplication is a more concise way of writing addition, k added n times:\[k+k+k+...+k=nk\] exponents are a more concise way of writing multiplication k multiplied n times... \[k*k*k*k*...*k=k^n\]

    • 11 months ago
  2. amistre64
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    so, first determine you value of k then determine how many times it is being multiplied to itself, n

    • 11 months ago
  3. sisike
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    O.o

    • 11 months ago
  4. amistre64
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    either you do not understand my explanation, or you perfer others to do your thinking for you ...

    • 11 months ago
  5. sisike
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    no I don't understand you. and I like to do my own thinking thank you :)

    • 11 months ago
  6. nincompoop
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    look at the patterns: (5)(5)(5) = 5^3 here, your exponent is 3. meaning that 5 has been multiplied three times. (-10)(-10)(-10)(-10)(-10) = (-10)^5 here, your exponent is 5. meaning that (-10) has been multiplied five times. (a)(a) = (a)^2 here, your exponent is 2. meaning that (a) has been multiplied twice. @amistre64 showed you something with k instead of a. these letters are just place holders, meaning they could be any value. it is the same concept, the k has been multiplied by how many times it appeared in the equation. he used n as a placeholder for the exponents to indicate that n will be how many times k will be multiplied.

    • 11 months ago
  7. sisike
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    ooooo ok :)

    • 11 months ago
  8. nincompoop
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    okay as in you understand now?

    • 11 months ago
  9. sisike
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    yes thank you!!

    • 11 months ago
  10. nincompoop
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    awesomeness! thank amistre64 :)

    • 11 months ago
  11. sisike
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    soooo would my answer be 16?

    • 11 months ago
  12. nincompoop
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    correct! negative multiplied by a negative results a positive

    • 11 months ago
  13. sisike
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    yay!!!!! ^.^ so when I write it down it would be.......|dw:1367250225075:dw|

    • 11 months ago
  14. nincompoop
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    caution: \[-4^2=-(4)^2=-16\]

    • 11 months ago
  15. nincompoop
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    no, that is not how you should write it down. you should follow the sign and it must be enclosed in a parenthesis.

    • 11 months ago
  16. sisike
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    oops! but ok :) do you mid helping me with one more question?

    • 11 months ago
  17. nincompoop
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    if it is not enclosed in a parenthesis, the sign that came before will be treated as multiplied by -1 after the calculation is made.

    • 11 months ago
  18. sisike
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    mind*

    • 11 months ago
  19. nincompoop
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    unfortunately, I don't have a lot of spare time. I just saw that you struggled and it was pretty easy enough for me to intervene and offer help.

    • 11 months ago
  20. sisike
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    ok :) well thank you so much anyway!!

    • 11 months ago
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