(a²-6)(a²-4) simplify
a⁴-4a²-6a²+24
Combine like terms
a⁴-10a²+24
Answer:
We just figure out what 3/4 of 20 is and it is 15 so 15 pens!
Step-by-step explanation:
Answer:
Step-by-step explanation:

What do you want to do with the function, as there is no question included?
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Answer:
42 ft
Step-by-step explanation:
14 times 14=196
R of circle =7
7 squared=49
49 times pi= 153.938040026
196-153.938040026= 42.0619599741
Rounded to 1 decimal=42.1
Rounded to whole number = 42