The area of a rectangular garden is 140

Question

square meters. The width is 3

meters longer than ​one-half

of the length.

Answer 1

length --- x
width ----x/2 + 3

x(x/2 + 3) = 140
x^2 /2 + 3x - 140 = 0
x^2 + 6x - 280 = 0
(x - 14)(x + 20) = 0
x = 14, we reject the x = -20

length is 14 m, width is 10 m