It can't be factored because the discriminant is less than zero.
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8x3 + 4x2 + 6x + 3 = 4x2(2x + 1) + 3(2x + 1) = (2x + 1)(4x2 + 3)
If you mean: 6x^2 +7x-3 then it is (2x+3)(3x-1) when factored
4x2 + 6x - 3 (with no remainder)
4x2 plus 3=11
x*2 - 6x + 9 x*2 -3x -3x +9 x(x-3) -3(x-3) (x-3)(x-3) Note also that x*2 - 6x + 9 is of the form a*2 -2ab + b*2 and so the factors are (x-3) and (x-3)