(6)4 (6)5EXAMPLE 4

2. (6)

⁴

(6)

⁵

Example 4: PN NR

^A

^B

^C

^D

^E

Since (6)

⁴

is the product of four negative factors, and the(since equal measuresproduct of an even number of negative numbers is positive,cannot be assumed,(6)

⁴

is positive. Since the product of an odd number of negativeeven though PN andnumbers is negative, (6)

⁵

is negative. Therefore, (6)

⁴

is greaterNR appear to be equal)than (6)

⁵

since any positive number is greater than any negativenumber. The best answer is (A). It is not necessary to calculateExample 5: x y

^A

^B

^C

^D

^E

that (6)

⁴

= 1,296 and that (6)

⁵

= 7,776 in order to make(since N is betweenthe comparison.P and R)