fractinal method 9xsquare-9(a+b) x+(2a square+5ab+2bsquare= 0
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9x square - 9(a+b)x + (2a square + 5ab + 2b square ) = 0 ... 9x2-9(a+b)x+(2a2+5ab+2b2)=0 9x2 - 9(a + b)x + (2a2 + 4ab + ab + 2b2) = 0 9x2 ...
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