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(x-2)2=2x-4
2x+14+2x-4= 4x+10
4x+10 = 50
4x = 50-10
4x = 40
x = 40/4
x = 10
10 + 7 = 17
10 - 2 = 8
l = p * l
17 * 8
136
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