Evaluate
-8-6i
Real Part
-8
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-2i\times 3-2\left(-4\right)i^{2}
Multiply -2i times 3-4i.
-2i\times 3-2\left(-4\right)\left(-1\right)
By definition, i^{2} is -1.
-8-6i
Do the multiplications. Reorder the terms.
Re(-2i\times 3-2\left(-4\right)i^{2})
Multiply -2i times 3-4i.
Re(-2i\times 3-2\left(-4\right)\left(-1\right))
By definition, i^{2} is -1.
Re(-8-6i)
Do the multiplications in -2i\times 3-2\left(-4\right)\left(-1\right). Reorder the terms.
-8
The real part of -8-6i is -8.
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