You cannot since the expression does not have rational roots.
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It is: 4(2x+3m) when factorised
(x - 3)(2x - 7)
2x + 7 + 5 = 2x + 12 = 2*x + 2*6 = 2*(x+6)
4x2 + 12x + 5 = 4x2 + 2x + 10x + 5 = 2x(2x+1) + 5(2x+1) = (2x+1)(2x+5)
2x2 - 9x + 4 = (2x - 1)(x - 4)