Question

Plwase solve question 25 and 26 step by step. I will follow you.

Answer 1

Answer:

LHS = 49a2 + 25b2 - 70ab +140ab =

49 a2 + 25 b2 +70ab =

(7a + 5b)2

NOW FOLLOW ME

Answer 2

Step-by-step explanation:

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.