Let
x--------> original length side of a square
we know that
area rectangle=length*width
area=126 in²
length=(x+8)
width=(x-3)
so
126=(x+8)*(x-3)------> x²-3x+8x-24=126----> x²+5x-150=0
using a graph tool------> to resolve the second order equation
see the attached figure
the solution is
x=10 in
the answer is
the original length side of a square is 10 in
Answer:
3.5 feet.
Step-by-step explanation:
There are 12 inches in a foot.
So, 42 ÷ 12 = 3.5.
Hope this helped, have a blessed day and best of luck!
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-16x - 7b - 2800X + 35000