Question

B) Find the square of a number using identity.

1. (105)2

C)Find the value of


1

7

−3

2. 12-4​

Answer 1

105²=(100+5)²= 100²+5²+2.100.5= 10000+25+1000

=11025

Answer 2

Answer:

1 answer we have to multiple 105 into 2

Step-by-step explanation:

so 105 into 2

so we got 210