Q. 34.4( 7 Votes )

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Answer :

(i) We use (a + b)2 = a2 + 2ab + b2

(4x + 3)2 = (4x)2 + 2× 4x × 3 + 32

(4x + 3)2 = 16x2 + 24x + 9

(ii) We use (a + b)2 = a2 + 2ab + b2

(x + 2y)2 = x2 + 4xy + 4y2

(iii) We use (a + b)2 = a2 + 2ab + b2 (iv) We use (a - b)2 = a2- 2ab + b2 Rate this question :

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