1.

Give possible expression for the length and breadth of the rectangle whose area is given by `4a^(2)+4a-3.`

Answer» Given , area of rectangle `=4a^(2) +6a-2a-3`
`=4a^(2)+4a-3` [ by splitting middle term ]
`=2a(2a+3)-1(2a+3)=(2a-1)(2a-1)2a+3)`
Hence , possible length `=2a-1`
and breadth `=2a+3`


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