Evaluate
-8+i
Real Part
-8
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15+8i-7\left(4+i\right)+5
Calculate 4+i to the power of 2 and get 15+8i.
15+8i-\left(28+7i\right)+5
Multiply 7 and 4+i to get 28+7i.
-13+i+5
Subtract 28+7i from 15+8i to get -13+i.
-8+i
Add -13+i and 5 to get -8+i.
Re(15+8i-7\left(4+i\right)+5)
Calculate 4+i to the power of 2 and get 15+8i.
Re(15+8i-\left(28+7i\right)+5)
Multiply 7 and 4+i to get 28+7i.
Re(-13+i+5)
Subtract 28+7i from 15+8i to get -13+i.
Re(-8+i)
Add -13+i and 5 to get -8+i.
-8
The real part of -8+i is -8.
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Limits
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