Question 1018423
Hi there,
Make width = 'x'
Length therefore, = 3x - 2
Area = Width * Length (* Times)
40 = x(3x - 2)
40 = 3x^2 - 2x
3x^2 - 2x - 40 = 0
Factorise
(3x + 10)(x - 4) = 0
3x + 10 = 0
3x = -10
x = -10/3 (Disregard as -ve)
x - 4 = 0
x = 4
Width = 4 feet
Length = 10 feet.
Hope this helps :-)