I have assumed that the fraction 7/2 is enclosed in parentheses, as follows:
Since the bases of the exponents are "a" or 5, you only have to apply the following rules of exponents to get your answer of 25a9.
1. sqrt(5) = 51/2
2. distributive law:
(ab)x = ax bx
3. addition of exponents of same base
ax ay = ax+y
4. multiplication of exponents
(ax )y = axy
=25 a14 a-5
WOW Thanks for the reply, but I still do not get how we get 25a^9. Can you please further explain. Thanks!
I get 25a^9/16? How can this be? Please help, still confused, thanks!
If you show your steps, it may help me spot where it has gone wrong.
=25 a14 a-5
the denominator 2 in the fraction (7/2) is an exponent and not a simple number. This is probably from where you got the 16.
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