Question

97square using identity​

Answer 1

Step-by-step explanation:

97^2=(100-3)^2=(a-b)^2

$(x - y) { }^{2} = x {}^{2} + {y}^{2} - 2xy$

(100-3)^2=100^2+3^2-2×100×3

(97)^2=10000+9-600

(97)^2=9391