Question

Please solve question number 4,8,9 and 11

Answer 1

4- identity:(a-b) (a+b) =(a^2-b^2) ( 300-3) (300+3) = (300^2 - 3^2)
= (900 - 9)
= 891

Answer 2

Q4 was (300 -3)× (300+3)

(a-b)(a+b)
a^2 - b^2
(300)^2 - (3)^2
solving thus you'll get ur answer
by the way, you guys has had nice question paper!