Question

6. Find the squares of the following numbers without actual multiplication. .
(i) 65
(ii) 95
(iii) 205​

Answer 1

Answer:

a) 65×65=4225

b) 95×95=9025

c) 205×205=42025

Answer 2

( a+b) ²=a²+2ab+b²

identity used in all questions