The square of 5x plus 5 minus 5 equals 0
3x²-5x=2
x²-5x/3=2/3
x²-5x/3+25/26=2/3+25/36
(x-5/6)²=49/36
∴x-5/6=7/6 x-5/6=-7/6
∴x=2 x=-1/3
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