Question

Which is the best way to calculate 99^2 ?

a) (90 + 9)^2
b) (50 + 49)^2
c) (100 - 1)^2
d) (50 + 40 + 9)^2​

Answer 1

Answer:

c

Step-by-step explanation:

cause 100 -1 is lot easier

Answer 2

Answer:

(100-1)²

please mark as brainlist