check if im right!

(2x^3y^-2)^-2 = y^4/4x^6

-5x^2y^4z^6/45x^7y^-8z^4 = -y^12z^2/9x^5

6.2 * 10^4/3.1*10^-2 =2.6*10^6 = 2000000

(3.25*10^-6)*(2.4*10^2) = 7.8*10^4

M= cubed root 1-p, when p=28

is M = to -3?

Thanks in advance!

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- Jul 1st 2008, 05:16 PMmissuniqueplease help
check if im right!

(2x^3y^-2)^-2 = y^4/4x^6

-5x^2y^4z^6/45x^7y^-8z^4 = -y^12z^2/9x^5

6.2 * 10^4/3.1*10^-2 =2.6*10^6 = 2000000

(3.25*10^-6)*(2.4*10^2) = 7.8*10^4

M= cubed root 1-p, when p=28

is M = to -3?

Thanks in advance! - Jul 1st 2008, 05:30 PMReckoner
One thing though: your notation is a little ambiguous. When writing expressions in this way, it is conventional to perform multiplication and division from left to right, so that your denominators should really be placed in parentheses if these are to be correct (this problem does not arise when using the normal $\displaystyle \frac ab$ notation, however).

- Jul 1st 2008, 05:37 PMmissunique
thanks for that. i really appreciate it.