3 years ago

Simplify (10 + 3i)(5 – 2i) ...?

Mathematics

2 answers:

iogann1982 [59]3 years ago

6 0

(10+3i)(5-2i)
30i=50-20i
50i=50
i=1

maybe

Fiesta28 [93]3 years ago

3 0

Answer:

$56-5i$

Step-by-step explanation:

Given are two complex numbers

10+3i and 5-2i

We are to find its product

Let us use foil method to multiply these two binomials.

$(10+3i)(5-2i)\\=50+15i-20i-6i^2\\$

Use the fact that i square =-1

We get product

= $50-5i+6\\=56-5i$

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