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37 votes
37 votes

6/2-(81/3)^(2)

User CompEcon
by
3.0k points

2 Answers

14 votes
14 votes
The answer is -726
I hope this helps!
User Quanti Monati
by
3.2k points
14 votes
14 votes

Answer:

-726

Explanation:

So whenever you have a fraction raised to some power, you can distribute the exponent:
((a)/(b))^n=(a^n)/(b^n) the reason for this can be explained, using the definition of an exponent. You can see:
((a)/(b))^n as
(a)/(b) * (a)/(b) * (a)/(b)... \text{ n amount of times} multiplying fractions simply multiplying the numerators by the other numerators, and the denominators by the other denominators. So you're going to have the fraction:
\frac{a * a * a \text{ n amount of times...}}{b * b * b\text{ n amount of times...}} which can be rewritten as an exponent, since this is the very definition of an exponent. This simplifies to:
(a^n)/(b^n).

Anyways now that you hopefully understand that, let's simplify the expression

The first step is to distribute the exponent to get the fraction:


(6)/(2)-(81^2)/(3^2)

Now square both values to get


(6)/(2)-(6,561)/(9)

The fraction simplifies to:


(6)/(2)-729

the left fraction simplifies to 3, so you get


3-729

This simplifies to

-726

User Amresh
by
3.3k points
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