Question

what is the answer ​

Answer 1

Answer:

1005 = (100)² + 5

1005

this is your answer

Answer 2

Answer:

1)1100025 2)9991

Step-by-step explanation:

1) 1005²=(1000+5)². {Identity=(a+b)²=a²+b²+2ab}

=(1000)²+5²+2(1000)(5)

=1000000+25+100000

=1100025

2)97*103=(100-3)(100+3)

{Identity=(a-b)(a+b)=a²-b²}

=100²-3²

=10000-9

=9991