Evaluate
-20-10i
Real Part
-20
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-8-16i+6i-12
Apply the distributive property by multiplying each term of 4i+3 by each term of 2i-4.
-8-12+\left(-16+6\right)i
Combine the real and imaginary parts.
-20-10i
Do the additions.
Re(-8-16i+6i-12)
Apply the distributive property by multiplying each term of 4i+3 by each term of 2i-4.
Re(-8-12+\left(-16+6\right)i)
Combine the real and imaginary parts in -8-16i+6i-12.
Re(-20-10i)
Do the additions in -8-12+\left(-16+6\right)i.
-20
The real part of -20-10i is -20.
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