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What is the expression 5 square root of -4 + 4 square root of -25 in standard form
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What is the expression 5 square root of -4 + 4 square root of -25 in standard form

User Jon Doe
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1 Answer

3 votes

Answer:

30i

Explanation:


5 √( - 4) + 4 √( - 25) \\ = 5 √(4 * - 1) + 4 √(25 * - 1) \\ = 5 √(4) * √( - 1) + 4 √(25) * √( - 1) \\ = 5 * 2 * i + 4 * 5 * i...( \because √( - 1) = i) \\ = 10i + 20i \\ = 30i

User Brontitall
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