(-2+3i)乘以(-2-3i)等于?如何计算

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(-2+3i)乘以(-2-3i)等于?如何计算

(-2+3i)乘以(-2-3i)等于?如何计算
(-2+3i)乘以(-2-3i)等于?如何计算

(-2+3i)乘以(-2-3i)等于?如何计算
(-2+3i)乘以(-2-3i)
=(-2)^2-(3i)^2
=4-9i^2
=4-9*(-1)
=4+9
=13