<PRE><B>Question 984830</B>
Hi dear,
let L and w be the lenght and width of the rectangle respectively.
If the width of the rectangle is 7 unit less then the lenght,
Then,
 w=L-7  ----(1)
But area of any 
rectangle is 
given by A=L*w ----(2)
substitute equ 1 in 2 
Thus,
A=L(L-7)
A=L²-7L ------{This is the required expression}
HOPE THIS HELPS;
Best regards,
Timnewman;:
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