Asked by Jeon Bam
i^2 = -1.
(-3i)(-5i) = -3 * -5 * i * i = 15 * i * i
Since i^2 = -1, this becomes:
15 * i * i = 15 * (-1) = -15
Therefore, the correct simplified expression is -15.
(-3i)(-5i) = -3 * -5 * i * i = 15 * i * i
Since i^2 = -1, this becomes:
15 * i * i = 15 * (-1) = -15
Therefore, the correct simplified expression is -15.
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