1.

`(4x^(2)+8x)` में क्या जोड़ा जाए कि परिणाम पूर्ण वर्ग हो जाए।A. `2x`B. 2C. 1D. 4

Answer» Correct Answer - D
Given expression
`implies 4x^(2)+8x`
Let `P` should added
`implies 4x^(2)+8x+p`
`implies (2x)^(2)+2xx(2x)xx2`
`[(a+b)^(2)=a^(2)b^(2)+2ab]`
Term that shold be added `=2^(2)=4`
`P=4`


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