The length and breadth of a rectangle are(4x+7)cm and (5x-4)cm respectively.If the area of the rectangle is 209cm^2,find the value of x and the perimeter of the rectangle
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=(4x+7)×(5x-4)=43681
=20x²-16x+35x-28=43681
=20x²+19x-28=46381
=when x value comes than use perimeter of rec forumla and solve
=20x²-16x+35x-28=43681
=20x²+19x-28=46381
=when x value comes than use perimeter of rec forumla and solve
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