That doesn't factor neatly. Applying the quadratic equation, we find two real solutions:
3 plus or minus 0.5 times the square root of 14
x = 4.87082869338697
x = 1.1291713066130293
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One factor of 6x² + 5x - 11 is (x - 1).
(3x - y)(3x - 5y) and (2x + 1)(2x + 11)
11 + 11 + 88 = 11*(1 + 1 + 8) = 11*(10) = 110
4x(x + 11)(x + 5)
There's a factor pair of 30 that adds up to 11. (x + 5)(x + 6)