Question 549446
width = x
length = x+8

Area = x(x+8)
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New width = x+2
New length = x+10

New Area == (x+2)(x+10)

(x+2)(x+10)-x(x+8)= 68

{{{(x^2+12x+20)-x^2-8x=68}}}

4x=68-20

4x=48
/4
x=12 cm the width
length = 12+8 =20cm