How many times does the graph of the function below intersect or touch the x-axis? y=-3x2 + x+4 A. 2 B. 1 C. 3 D. 0
1 answer:
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Answer:
13
Step-by-step explanation:
(3 - 2i)(3 + 2i)
Expand
(9 + 6i - 6i - 4i^2)
Add
(9 - 4i^2)
Convert i^2
i^2 = ()^2 = -1
(9 - 4(-1))
Add
(9 + 4)
= 13