Use the polynomial A r 15r8 9r3 42r21 82r 17r7 r19 to

Use the polynomial A (r) = -15r^8 + 9r^3 - 42r^21 + 82r + 17r^7 - r^19 to answer the questions below. (a) Write A (r) in standard form. (b) What is the degree of A (r)? (c) What is the constant term of A (r)? (d) How many terms does A (r) contain?

Solution

a) Standard form :
This is the form in which the highest degree term appears first

So, the std form is :

-42r^21 - r^19 - 15r^8 + 17r^7 + 9r^3 + 82r

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b) Degree :
21

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c) Constant term :
None exist

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d)
How many terms :

six terms ---> ANSWER