I have to do polynomials
my question is 1/4 p^3 + 2/3 p^3
My answer is 11p3/12
How come I have to put p^3 on the numerator but not the denominator? If the exponent is positive is goes on top always, if not then bring it down and make it positive?
will get back to you..........................................
PFA the document for more details.....
New Doc 2(2).pdf
Hope this clarifies your doubt. If you are not clear yet, Please feel free to ask me.
Thanks for the reply. However the second part I'm a bit lost, mind extending it a bit more for me?
no problem tell me
If the problem had a p^-3 instead, why would it become 1/p^3 ? I know the 3 would go to the bottom and become positive, however I don't know how you got 1 over it.
By the way I'm leaving the libaray soon.
Any thing ( number or variable) raised to 0 is 1.
so p^0 is 1.
Also p^m /p^n = p^ (m-n)
so if u want to do p^5 /p^1 = p^(5-1) = p^4
so we will verify p^-3 is 1/p^3 or not now...
p^-3 can be written as p^(0-3) = p^0/p^3
p^0 is 1. so the above becomes 1/p^3
Wait.. If the problem was 2/3 p^-3 + 1/4p^-3, wouldn't the answer be 11/12 p^3 ?
Because the rules of exponents says that a negative exponent can't be above the denominator but rather with it and changed to positive.
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