Respuesta :
Answer:
Step-by-step explanation:
Height or Length of rectangle= 4x
Breadth of rectangle= 3x+1
Now, we know that
Area of rectangle= Length×Breadth
= 4x(3x+1)
=
Hence, Area of given rectangle can be expressed as .
This is the best possible answer
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Answer:
A=12x²+4x
Step-by-step explanation:
Area of Rectangle Formula
A=l*w
A=(3x+1)(4x)
A=12x²+4x