(a+3)(a+2)-(a+1)²

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(a+3)(a+2)-(a+1)²

Guest 31.03.2020

asinus · Answer 1 · 2020-03-31T01:24:46

(a+3)(a+2)-(a+1)²

Hello Gast!

\((a+3)(a+2)-(a+1)² \\ =a²+2a+3a+6-a²-2a-1\\ \color{blue}=3a+5\)

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