Find the sum of all solutions to the equation 4x(x-3) = 23 + 3x^2 + 10x.
4x(x – 3) = 23 + 3x2 + 10x
4x2 – 12x = 23 + 3x2 + 10x
x2 – 22x – 23 = 0
(x + 1)(x – 23) = 0
x = +23
x = – 1
their sum: +22
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