Answer:
-4x-13
Step-by-step explanation:
To figure out the sum, you have to add like terms.
This is how it would look like:

Answer:
N must a negitve number.
Step-by-step explanation:
They opposite would be positive. Anything positive is bigger than a negitve
A. 9, 12, 15
9^2 + 12^2 = 15^2
81 + 144 = 225
225 = 225
Answer:
192
Step-by-step explanation:
Given,
a = 8
b = 24
To find : ab = ?
ab
= 8 x 24
= 192