Simplify (8 + 2i)(-5 + 6i)
2 answers:
Answer:
12i^2+38i-40
Step-by-step explanation:
In this problem, you have to FOIL.
Which means that first you multiply the first term "8" in (8+2i) by the terms in (-5+6i)
so...
8 * -5
8*6i
And you get:
-40 + 48i
Then You multiply the second term "2i" by the terms in (-5+6i)
so...
2i*-5
2i*6i
And you get:
-10 +12i^2
Then you add like terms to get: 12i^2 +38i-40
Assuming ‘I’ is an imaginary unit . . .
Answer : -52 + 38i
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Step-by-step explanation:
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