$$[ \frac { 1 } { i ^ { 10 } } + ( 2 - i ) ^ { 2 } + \sqrt { - 25 } ]$$
$2+i$
$$\frac{1}{-1}+\left(2-i\right)^{2}+\sqrt{-25}$$
$$-1+\left(2-i\right)^{2}+\sqrt{-25}$$
$$-1+\left(3-4i\right)+\sqrt{-25}$$
$$\sqrt{-25}+2-4i$$
$$5i+2-4i$$
$$2+i$$
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$2$
$$Re(\frac{1}{-1}+\left(2-i\right)^{2}+\sqrt{-25})$$
$$Re(-1+\left(2-i\right)^{2}+\sqrt{-25})$$
$$Re(-1+\left(3-4i\right)+\sqrt{-25})$$
$$Re(\sqrt{-25}+2-4i)$$
$$Re(5i+2-4i)$$
$$Re(2+i)$$
$$2$$
