Question

Evaluate the following products without actual multiplication.30.5*29.5

Answer 1

Answer:

899.75

Step-by-step explanation:

30.5*29.5= (30+0.5)*(30-0.5)

Using the identity: (a+b)(a-b)= a^2 - b^2

(30+0.5) (30-0.5) = (30)^2 - (0.5)^2

                             = 900 - 0.25

                             = 899.75

HOPE IT HELPS......