Match the expressions of column I with that of column II: Column I Column II (1) `(21x + 13y)^2` (a) `441x^2 – 169y^2` (2) `(21x – 13y)^2` (b) `441x^2 + 169y^2 + 546xy` (3) `(21x – 13y) (21x + 13y)` (c) `441x^2 + 169y^2 – 546xy` (d) `441x^2 – 169y^2 + 546xy`

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

Match the expressions of column I with that of column II:

Column I	Column II
(1) `(21x + 13y)^2`	(a) `441x^2 – 169y^2`
(2) `(21x – 13y)^2`	(b) `441x^2 + 169y^2 + 546xy`
(3) `(21x – 13y) (21x + 13y)`	(c) `441x^2 + 169y^2 – 546xy`
	(d) `441x^2 – 169y^2 + 546xy`

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