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