9a-3(a-6)=-6
9a-3a+18=-6
6a+18=-6
6a=-24
a=-4
what i did to get my answer was 13*6*6 because the whole circle is 12 and so i got 468.
No because the perfect trinomial has a square as the third term and the middle term is a multiple of 2.
Just pay attention to the amount of stripes
The angles with one like equals the one with one, the angle with 2 equals , and so does the one with three
so, ABC will be equal to : MNP
hope this helps
