A square has a side length of 6x+2. a rectangle with width 3x+1 has the same area as the square. what is the length of the recta
ngle?
1 answer:
Let A the area of the square, Ar the area of a rectangle, l length and w width, s sides.
A=Ar
A= s²
Ar= lw
A= (6x+2)²
(6x+2)²= l w
(6x+2)²= l (3x+1)
2(3x+1)(6x+2)= l (3x+1)
l= 2(6x+2)= 12x+4
so length is 12x+4
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