what is the area of a rectangle with length (x+1) and breadth (2x + 1)
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Step-by-step explanation:
Area of rectangle = l × b
= (x+1)( 2x+1)
= x (2x+1) +1 (2x+1)
= 2x^2 + x + 2x +1
= 2x ^2 + 3x +1
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