←
Multiplying Polynomial Functions

6.2.5 Multiplying Polynomial Functions

6.2.5 • Multiplying Polynomial Functions

Cool Down

For questions 1 – 4, use the following polynomial function to complete the multiplication.

f ( x ) = 3 x + 2 b f ( x ) = 3 x + 2 b
g ( x ) = 3 x − 2 b g ( x ) = 3 x − 2 b
h ( x ) = 7 x + 2 h ( x ) = 7 x + 2
j ( x ) = 9 x 2 − 12 x + 4 j ( x ) = 9 x 2 − 12 x + 4
1.

f ( x ) · g ( x ) = f ( x ) · g ( x ) =

Compare your answer:

9 x 2 − 4 b 2 9 x 2 − 4 b 2

2.

f ( x ) · f ( x ) = f ( x ) · f ( x ) =

Compare your answer:

9 x 2 + 12 x b + 4 b 2 9 x 2 + 12 x b + 4 b 2

3.

h ( x ) · j ( x ) = h ( x ) · j ( x ) =

Compare your answer:

63 x 3 − 66 x 2 + 4 x + 8 63 x 3 − 66 x 2 + 4 x + 8

4.

h ( x ) · h ( x ) = h ( x ) · h ( x ) =

Compare your answer:

49 x 2 + 28 x + 4 49 x 2 + 28 x + 4