Question
Simplify:
$ 3 a^2+2(a+2)-3 a(2 a+1) $
$ 3 a^2+2(a+2)-3 a(2 a+1) $
✓
Answer
To simplify, we will use distributive law as follows:
$ 3 a^2+2(a+2)-3 a(2 a+1) $
$ =3 a^2+2 a+4-6 a^2-3 a $
$ =3 a^2-6 a^2+2 a-3 a+4 $
$ =-3 a^2-a+4 $
$ 3 a^2+2(a+2)-3 a(2 a+1) $
$ =3 a^2+2 a+4-6 a^2-3 a $
$ =3 a^2-6 a^2+2 a-3 a+4 $
$ =-3 a^2-a+4 $
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