Question

Find the product using identies
(127*127-73*73)

Answer 1

${127}^{2} - {73}^{2} \\ = (127 + 73)(127 - 73) \\ = 54 \times 200 \\ = 10800$
hope it will help you

Answer 2

(127*127-73*73)

127²-73²

a²-b²=(a+b) (a-b)

(127+73) (127-73)

200*54

10800