Hopefully, one of them is either (2x + 11) or (4x^2 - 22x + 121)
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No.3 is a factor of 24.24 is a multiple of 3.
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8x3=24
9x4 is 36 and 8x3 is 24
2x + 6 = 2(x + 3) so 2x + 6 = 0 implies x = -3 Now, substitute x = -3 in 8x3 + 20x2 + 36 which is -8*27 + 20*9 + 36 = -216 + 180 + 36 = 0 So -3 is a root of 8x3 + 20x2 + 36 ie, by the remainder theorem, (x + 3) is a factor. Also, each of the coeffivcients in the expression is even, so 2 is also a factor. So 2*(x + 3) or (2x + 6) is a factor.