Evaluate
3-6i
Real Part
3
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-i\times 6-3i^{2}
Multiply -i times 6+3i.
-i\times 6-3\left(-1\right)
By definition, i^{2} is -1.
3-6i
Do the multiplications. Reorder the terms.
Re(-i\times 6-3i^{2})
Multiply -i times 6+3i.
Re(-i\times 6-3\left(-1\right))
By definition, i^{2} is -1.
Re(3-6i)
Do the multiplications in -i\times 6-3\left(-1\right). Reorder the terms.
3
The real part of 3-6i is 3.
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