They are both similar because you just have to multiply 7 x 2 and then add the zeros. 7 x 20 is 140 and 7 x2000 is 14000
Answer: 4
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
nisha
Step-by-step explanation:
you have to pick the middle one
You have ti distribute the 5n into the brackets.
so then youll have 15n^2 + 40n.