give possible expression for the length and breadth of the rectangle having 35y^y+8y-16 as its area
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Let l and b are the length and breadth
of a rectangle .
Area = 35y² + 8y - 16
l × b = 35y² + 28y - 20y - 16
=> l × b = 7y( 5y + 4 ) - 4( 5y + 4 )
= ( 5y + 4 )( 7y - 4 )
Therefore
i ) l = 5y + 4 , b = 7y - 4
Or
ii ) l = 7y - 4 , b = 5y + 4
••••
of a rectangle .
Area = 35y² + 8y - 16
l × b = 35y² + 28y - 20y - 16
=> l × b = 7y( 5y + 4 ) - 4( 5y + 4 )
= ( 5y + 4 )( 7y - 4 )
Therefore
i ) l = 5y + 4 , b = 7y - 4
Or
ii ) l = 7y - 4 , b = 5y + 4
••••
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