Perform each operation with complex numbers. Give answers in $a+b i$ form.
(a) $(-2+4 i)-(3-7 i)$
(b) $\frac{9-7 i}{1-3 i}$
(c) Simplify $i^{57}$
(d) $5 i(3-i)^{2}$

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The Answer of Perform each operation with complex numbers. Give answers in $a+b i$ form.
(a) $(-2+4 i)-(3-7 i)$
(b) $\frac{9-7 i}{1-3 i}$
(c) Simplify $i^{57}$
(d) $5 i(3-i)^{2}$

Perform Each Operation with Complex Numbers a+bia+b ia+bi Form (A) (−2+4i)−(3−7i)(-2+4 i)-(3-7 i)(−2+4i)−(3−7i)

Perform Each Operation with Complex Numbers $a+b i$ Form
(A) $(-2+4 i)-(3-7 i)$