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IRISSAK [1]
3 years ago
10

Which of these represents a quadratic polynomial with exactly two zeros given by - 21 and 2i?

Mathematics
2 answers:
weqwewe [10]3 years ago
8 0

Answer:

B. x² + 4

Step-by-step explanation:

(0+/-√-16)2

+/- 4i / 2

+/- 2i

spin [16.1K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

(x + 2i)(x - 2i)

= x² - 2ix + 2ix - (2i)²

= x² - 4i²

= x² -4(-1)

= x² + 4

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Answer:

The two beverages can be (iced tea,fruit juice) or (iced tea,soda).

Step-by-step explanation:

Given : Beverages iced tea \frac{3}{8}, fruit juice \frac{2}{8}, water \frac{1}{8}, soda  \frac{2}{8}.

To find : Which two beverages have a sum of  \frac{5}{8} of the students votes ?

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We have to get the two beverages whose sum became  \frac{5}{8} .

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Step-by-step explanation:

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