Question

Find the value of [ square of 211- square of 210] + 49×51

Answer 1

Answer:

Answer is so simple......

Step-by-step explanation:

(211^2-210^2)+49×51

(44521-44100)+49×51

421+49×51

421+2499

=2920

Answer 2

211 * 211 = 44521                                               49*51 = 2499

210 * 210 = 44100

===> [44521-44100] + 2499 = [421] + 2499 =2920

ans 2920

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