Evaluate
-18-54i
Real Part
-18
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6i\left(7\left(-1\right)+3i-2\right)
Calculate i to the power of 2 and get -1.
6i\left(-7+3i-2\right)
Multiply 7 and -1 to get -7.
6i\left(-9+3i\right)
Do the additions in -7+3i-2.
-18-54i
Multiply 6i and -9+3i to get -18-54i.
Re(6i\left(7\left(-1\right)+3i-2\right))
Calculate i to the power of 2 and get -1.
Re(6i\left(-7+3i-2\right))
Multiply 7 and -1 to get -7.
Re(6i\left(-9+3i\right))
Do the additions in -7+3i-2.
Re(-18-54i)
Multiply 6i and -9+3i to get -18-54i.
-18
The real part of -18-54i is -18.
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