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Answer:
Step-by-step explanation:
Let x be the width and (x+7) is the length
area is 228sq²
Formula A=lw or lw=A
(x+7)x=228
x²+7x=228
x²+7x-228=228-228
x²+7x-228=0
(x+19)(x-12)
x=-19, x=12
change -19 into positive 19
19 is the length and 12 is the width
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