Answer:
126
Step-by-step explanation:
6(14 + 7).
Distribute
6*14 + 6*7
84 + 42
126
The answer is 1,000,000 because if you multiply 1,000 and 1,000 you will get 1,000,000
Perfect square is
a²+2ab+b²
so just take the square root of the end ones and add then double to get middle term
A.
m+10=10m, doubled is 20m
nope
B.
m+5=5m, doubled is 10m, yep
C.
m+2√15=fancy thing that won't get to 36m
D.
m+12=12m, doubled is 24m, yep
B and D