Math, asked by rekhasinghal285, 1 year ago

Evaluate usimg identities 89×87

Answers

Answered by Monishkuamr

0

(90-1)(90-3)

90²+3

24300

Answered by tanmoybortamuli

5

Answer:

Step-by-step explanation:

(90-1)(90-3)

=90²+90[-1+(-3)]+[-1(-3)]

=8100-360+3

=7743

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