Answer: c. 7 + 4i
Explanation:
√-16 + √49
√49 = 7
√-16 = √16 × -1 = √16 × √-1
note:√-1 = i
√16= 4
Therefore
√- 16 + √49 = 4i + 7
=7+4i
Answer:
C. 7 + 4i
√-16 can't come out positive because of - so it's like this √16 × √-1
√16 is 4 and √is = i
√49 will come out as 7
so the answer is 7 + 4i
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