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sisike
1. Write using exponents. (–4)(–4)
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... \[k*k*k*k*...*k=k^n\]
so, first determine you value of k then determine how many times it is being multiplied to itself, n
either you do not understand my explanation, or you perfer others to do your thinking for you ...
no I don't understand you. and I like to do my own thinking thank you :)
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.
okay as in you understand now?
awesomeness! thank amistre64 :)
soooo would my answer be 16?
correct! negative multiplied by a negative results a positive
yay!!!!! ^.^ so when I write it down it would be.......|dw:1367250225075:dw|
caution: \[-4^2=-(4)^2=-16\]
no, that is not how you should write it down. you should follow the sign and it must be enclosed in a parenthesis.
oops! but ok :) do you mid helping me with one more question?
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.
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.
ok :) well thank you so much anyway!!