Algebra Demystified 2nd Ed

Chapter 5 eX P O Ne N T S a N D r O O T S 129

DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 5

5. Simplify ()3xy−^242.

a. y

x

8

9 4

b.^9

8

4

y

x

C.^9

4

2

y

x

D.^3

8

4

y

x

6. Write^73 xy as a product.

a. ()()73xy−^1

b. 21 xy−^1

C. − 21 xy

D.^73 xy cannot be written as a product.

7. Simplify^6
   15

23

45

xy

xy

−

−.

a.^25

xy^22

b.^2

5

8

6

y

x

C.^2

5

2

2

y

x

D.^2

5

2

6

y

x

8. Rewrite 10 x^23 / without using a fraction exponent.

a. 10 x^3

b. 10 x^3

C.^310 x^2

D. 103 x^2