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(3+7i)(-2-2i)-4i(5-9i)
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(3+7i)(-2-2i)-4i(5-9i)

User Farid
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(3+7i)(-2-2i)-4i(5-9i)

(3+7i)(-2-2i)(-20i+36i<2)

Combine like terms:

(3-2)(7i-20i)(36i<2)

1-13i+36i<2

This is the eqaution simplified

User Shibapoo
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