How do you simplify $(1+i)^2$ ?

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Answer 1 · 2017-02-02T12:24:44

$2i$

Just times is out and plug in $i^2 = -1$

$(1+i)^2$

Times it out using foil or the perfect square rule

$= 1 + 2i + i^2$

Plug in $i^2 = -1$

$= 1 + 2i - 1$

$=2i$

How do you simplify (1+i)^2(1+i)^2?