Answer:
Explanation:
(4-5i)(3-6i) = 4*(3-6i) - 5i(3 - 6i)
= 4*3 - 4*6i - 5i*3 + 5i*6i
= 12 - 24i - 15i + 30i²
= 12 - 39i + 30 * (-1) {i² = -1}
= 12 -30 - 39i
= -18 - 39i
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