12a²
Since the question is 3(2a), then just write it out. 3(2a) is 2a+2a+2a or 6a.
2a*3 = 8+4a 6a = 8+4a 6a-4a = 8 2a = 8 a = 4
To simplify the expression (10a - 2a \times 3), first, calculate (2a \times 3), which equals (6a). Then, substitute this back into the expression: (10a - 6a). This simplifies to (4a). Therefore, the final result is (4a).
2a-6a+9-4a+9
If you mean -2a+6a then it simplifies to 4a
6a2
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.