Quiz 32, Unit 10

Question 1

simplify square root of 50

Answer 1

5 x square root of 2

Question 2

simplify 3 x square root of 4

Answer 2

6

Question 3

simplify 2 x square root of 8

Answer 3

4 x square root of 2

Question 4

multiply:

(3x) (2x² + 3x - 4)

Answer 4

6x³ + 9x² - 12x

Question 5

multiply:

(-2m) (3x - 4y)

Answer 5

-6mx + 8my

Question 6

multiply:

(.2ab) (.6a² + 3b²)

Answer 6

.12a³b + .6ab³

Question 7

multiply:

(1/3xy) (6xy² - 9x²y + 12x²y²)

Answer 7

2x²y³ - 3x³y² + 4x³y³

Question 8

divide:

20a³ + 25a² - 5a

        5a

Answer 8

4a² + 5a - 1

Question 9

divide:

49r³s - 14rs² - 21rs³

         7rs

Answer 9

7r² - 2s - 3s²

Question 10

divide:

-44a³ + 16a² - 24a

        4a

Answer 10

-11a² + 4a - 6