Question

Without directly multiplying, evaluate the following: 0.99x0.99

Answer 1

Step-by-step explanation:

1) 0.99^2 = (1- 0.01)^2 = 1 -2x 1x0.01 + 0.01^2 = 1-0.02 + 0.0001 = 0.9801ans. 2) 0.64^2 - 0.36^2 = (.64+.36)(.64-.36)= 1x.28 = 0.28