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What is the square root of -225

2 Answers

5 votes

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

15i

User Odelia
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6 votes

Answer:

15i

Explanation:

since 15 x 15 is 225, the imaginary number comes into play here. i x i = -1, so 15i x 15i = -225

User Bobmoff
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