pls ans 38 and 39

pls ans 38 and 39 38. 39. (i) 16 (ii) 1.73 x 1.73 - 0.27 x 0.27 Evaluate: (997 + 496)2 _ (997 — 496)2 997 x 496 (856 Simplify : 856 x 856+167 x 167 ing:

{38}(a+b)^2 - (a-b)^2 = 4ab
i.e.
4(997.496)/997/496
4 - Ans

{39} (a+b)^2 + (a-b)^2 = 2(a^2+b^2)
i.e.
2(856.856 + 167.167)/(856.856 + 167.167)
2 - Ans

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pls ans 38 and 39 ​​ pls ans 38 and 39 ​​ 38. 39. (i) 16 (ii) 1.73 x 1.73 - 0.27 x 0.27 Evaluate: (997 + 496)2 _ (997 — 496)2 997 x 496 (856 Simplify : 856 x 856+167 x 167 ing:

pls ans 38 and 39

pls ans 38 and 39 38. 39. (i) 16 (ii) 1.73 x 1.73 - 0.27 x 0.27 Evaluate: (997 + 496)2 _ (997 — 496)2 997 x 496 (856 Simplify : 856 x 856+167 x 167 ing: