Question

$51^{2} -49^{2}$

Answer 1

Answer:

${51}^{2} - {49}^{2}$

$(51 \times 51) - (49 \times 49)$

$2601 - 2401$

$200$

Ans. 200

Hope it helps.

Answer 2

$= ( {51})^{2} - ({49})^{2}$

$= (51 \times 51) - (49 \times 49)$

$= 2601 - 2401$

$= 200$