Perform the desired operation. Write the answer in the form a + bi.(9 + 8i)(4 + 8i)
A. 100 - 40i
B. -28 + 104i
C. -28 - 104i
D. 64i2 + 104i + 36
Answer: B
Mathematics
You might also like to view...
Rewrite each of the following in scientific notation and calculate the answer in scientific notation.
A. 48 × 10-5 B. 48 × 105 C. 8 × 10-4 D. 8 × 104
Mathematics
Solve the compound inequality. Graph the solution set and write the solution in interval notation.x ? 3 or x ? 6
A. (-?, 3] ? [6, ?)
B. (3, 6)
C. (-3, 6)
D. [-6, -3]
Mathematics
The graph shows the sales, in thousands of dollars, for a small business over a twelve month period. Use the graph to answer the question. 
Which month had the lowest sales?
A. Month 3 B. Month 8 C. Month 2 D. Month 6
Mathematics
Collect like terms and then arrange in descending order.2x4 + 13x8 - 13x4 + 15x8 - 8x8
A. Can't be simplified B. 20x8 - 11x4 C. 9x8 D. 9x12
Mathematics