The length of rectangle is 3x²+5×-1 and its width is 3x+1 find its perimetre
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Answer:
Length = 3x^2 + 5x - 1
width = 3x + 1
Perimeter = 2(l + b)
2(3x^2 + 5x - 1 + 3x + 1)
Perimeter = 6x^2 + 16x
Step-by-step explanation:
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