3 years ago

Simply the expression below (10-3i)(2-5i)

Mathematics

2 answers:

scoundrel [369]3 years ago

8 0

Answer:

7i and 3i

hope this helps <33

rewona [7]3 years ago

4 0

Answer:

Step-by-step explanation:

Use foil method

(10 - 3i) (2 -5i) = 10*2 + 10*(-5i) + (-3i)*2 + (-3i)*(-5i)

= 20 - 50i -6i + 15i²

= 20 - 50i - 6i + 15*(-1) {i² = -1}

= 20 - 50i - 6i - 15

= 20 - 15 - 50i - 6i

= 5 - 56i

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