Write the first four terms of the binomial expansion.(x + 4)20
A. x20 + 3040x19 + 3040x18 + 145,920x17
B. x20 + 80x19 + 3040x18 + 18,240x17
C. x20 + 760x19 + 3040x18 + 72,960x17
D. x20 + 80x19 + 3040x18 + 72,960x17
Answer: D
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Perform the indicated operations. Write the result using a radical. Assume that all variables represent positive values.
? 
A. 
B. 
C. 
D. 
Solve the problem.What is the range of the cosine function?
A. all real numbers B. all real numbers from -1 to 1, inclusive C. all real numbers greater than or equal to 1 or less than or equal to -1 D. all real numbers greater than or equal to 0
Write the number in standard form.One hundred million, six thousand
A. 1,600,000 B. 106,000,000 C. 1,006 D. 100,006,000
Factor the polynomial completely. If the polynomial cannot be factored, write "prime."x2 + 9
A. (x + 3)2 B. (x - 3)2 C. (x + 3)(x - 3) D. prime