Martindavid100viz
Answered

HOW do you solve this :
Find the product of 101 ∙ 99, using the special product rule(a+b) (a-b) =

Sagot :

SugoiOverloadviz
101 can be expressed as 100 + 1
99 can be expressed as 100-1

(a+b)(a-b) = a^2 - b^2

(100 + 1)(100 - 1) = 100^2 - 1^2 = 10000 - 1 = 9999