Answer:
81
Step-by-step explanation:
2x+6=84
2x=78
81
find your own way
14, 15, 20 | 2
7, 15, 10 | 2
7, 15, 5 | 3
7, 5, 5 | 5
7, 1, 1 | 7
1, 1, 1
Answer:
× 3 × 5 × 7 = 420
Hope it helped,
Happy homework/ study/ exam!
Answer is
geometric series
The given expression is

And in the second factor, x is common. So on taking x out, we will get

We can expand it by distributing , that is


Combining like terms,

And that's the expanded form ., and the given expression can also be written in that way .