What is (a+2i)^2+2(a+2i) ?

The solution to (a+2i)^2+2(a+2i) is (a^2-4)+4ai+2(a+2i)

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simplify (a+2i)^2+2(a+2i)

simplify

(a + 2 i)^{2} + 2 (a + 2 i)

(a^{2} - 4) + 4 ai + 2 (a + 2 i)

Solution steps

(a + 2 i)^{2} + 2 (a + 2 i)

Expand

(a + 2 i)^{2} : a^{2} + 4 ai - 4

= a^{2} + 4 ai - 4 + 2 (a + 2 i)

Rewrite in standard complex form:

(a^{2} - 4) + 4 ai + 2 (a + 2 i)

= (a^{2} - 4) + 4 ai + 2 (a + 2 i)

lo g_{10} (5) (5 x + 10 y)

(x - 3) (x + 3) (x - 4)

\frac{2 n ( - 1 ) ^{n} + ( - 1 ) ^{n} - 1}{4}

(b + e^{- t})^{3}

l im x \Rightarrow 0 + (2 - e^{3} x) 15 x

What is (a+2i)^2+2(a+2i) ?
The solution to (a+2i)^2+2(a+2i) is (a^2-4)+4ai+2(a+2i)