Question

hey guyzzzz help me...


evaluate :
a) 105×106
b) 102^2


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Answer 1

105*106

S0 (100+5)(100+6)

=100^2+100*5+100*6+5*6

=10000+500+600+30

=11100+30

=11130

(100+2)^2

=100^2+2^2+2*100*2

=10000+4+400

=10404

$....$

Answer 2

Check answer in the given attachment