Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Factor by grouping.7p3 + 5q3 + 5pq2 + 7p2q
A. (p2 + q2)(5p + 7q) B. (p2 + q2)(5p - 7q) C. (p + q2)(5p2 + 7q) D. (p2 + q2)(7p + 5q)
Mathematics
Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 
B. 4x12
C. 4x27
D. 
Mathematics
Solve the problem.Suppose that the amount in grams of a radioactive substance present at time t (in years) is given by A(t) = 870e-0.60t. Find the rate of change of the quantity present at the time when t = 2.
A. -3.3 grams per year B. 3.3 grams per year C. -157.2 grams per year D. 157.2 grams per year
Mathematics
Use the quadratic formula to find the exact solutions.x2 = 15 + 9x
A. 9 ± 
i
B. 
± 
i
C. 
D. 9, 15
Mathematics