plz solve (9+r)*2 + (r +2)*2 =17*2
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(9+r)*2 + (r +2)*2 =17*2
81+r^2+18r+r^2+4+4r=34
4+81-34+2r^2+22r=0
2r^2+22r=-51
2r^2+22r+51
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