Question

$\huge \color{lime} {solve \: it}$
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Answer 1

1.)

97²

= (100-3)²

=(100)²+(3)²-2(100)(3)

=10000+9-600

=10009-600

=9409

2.)

101×98

=(100+1)(100-2)

=100(100-2)+1(100-2)

=10000-200+100-2

=10100-202

=9898

Answer 2

Answer:

(1)97*97

=9497

(2)101*98

=9898

Hope it helps you☺️