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    				| 1. | निम्न के मान ज्ञात कीजिए । (i) `(2x+y)(4x^(2)-2xy+y^(2))` (ii) `((x)/(2)-2y)((x^(2))/(4)+xy+4y^(2))` | 
| Answer» (i) यहाँ, `(2x+y)(4x^(2)-2xy+y^(2))=(2x+y)[(2x)^(2) - (2x)(y) + (y)^(2)]` `= (2x)^(3) + (y)^(3) = 8x^(3) + y^(3)` (ii) यहाँ, `((x)/(2)-2y)((x^(2))/(4)+xy+4y^(2))=((x)/(2)-2y)[((x)/(2))^(2)+((x)/(2))(2y)+(2y)^(2)]` `= ((x)/(2))^(3) - (2y)^(3) = (x^(3))/(8) - 8y^(3)` | |