6. The length of a rectangle exceeds its breadth by 3 cm. If each of the length and breadth are increased by 2 cm, the area of the new rectangle will be 58 cm? more than that of the original rectangle, Find the length and breadth of the original rectangle,
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Answer:
length= 15
breadth= 12
I m right ?
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l=b+3
l+2
b+2
(l+2)(b+2)=58
lb+2b+2l+4=58
(b+3)b+2 (b+3)=54
b^2+3b+2b+6=54
b^2+5b=48
b^2+5b-48=0
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