Question 540212
the equation to start with is
 L x W = A
you are given that w+2=L
so substitute w+2 for L in the original equation and plug in the value of the area given

w(w+2)=48

and foil it out and subtract 48 from both sides to get

w^2+2w-48=0

then you will have to factor the equation which comes out to be

(w+8)(w-6)

the (W+8) will be set equal to 0 and w will be negative so then (W-6) will be set equal to 0 and then that equals 6 which is the width and then the length would be 8 since W+2 equals the length, and 6 times 8 is 48