Since the question is 3(2a), then just write it out. 3(2a) is 2a+2a+2a or 6a.
2a-6a+9-4a+9
6a
6a to the second power minus 8ab + 2a
5a-20+2a = 6a-11 5a+2a-6a = 20-11 1a = 9 a = 9
I guess you mean: 2a^2+6a Well in this case you take 2a out of the bracket and then you're left with a+3 inside. 2a(a+3a)
6a squared-8ab+2a factor completely and check mentally
The value of a in the equation 5a plus 2a = 6-6a is a=6/11.
6a2
12a²
-4 + 10 + 6a - 2a + 3 9 + 4a
2a+2b+3a+3b+a+b= 6a+6b 2a+3a+a=6a 2b+3b+b=6b