Rectangular field

One dimension of the rectangular field is 56 m greater than second dimension. If each side of the rectangle increases by 10 m, increases the surface field is 1480 m² . Determine dimencions of the field.

Correct answer:

a =  41 m
b =  97 m

Step-by-step explanation:

$$\begin{gathered} x=y+56 \\ (x+10)(y+10)-xy=1480 \\ x=41 \\ y=97 \end{gathered}$$

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