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Helga [31]
3 years ago
14

Which is equal to (2+3i) + (-4+i)

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
4 0

Answer:

-2 + 4i

Step-by-step explanation:

Step 1: Write expression

(2 + 3i) + (-4 + i)

Step 2: Combine like terms

-2 + 4i

Yuri [45]3 years ago
4 0

Answer:

the answer is -2+4i

Step-by-step explanation:

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Which of the following is a polynomial with roots negative square root of 5, square root of 5, and 3?
Alex Ar [27]

Answer:

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Step-by-step explanation:

The roots of the given polynomial are: -\sqrt{5}, \sqrt{5}, 3

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Let the polynomial be represented by P(x), so

P(x) = (x - (-\sqrt{5}))(x-\sqrt{5})(x-3)\\\\ P(x)=(x +\sqrt{5})(x-\sqrt{5})(x-3)\\\\ P(x)=(x^{2}-(\sqrt{5} )^{2})(x-3)\\\\ P(x)=(x^{2}-5)(x-3)\\\\ P(x)=x^{3}-3x^{2}-5x+15

The polynomial represented by P(x) has the given roots.

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