11 is a Prime number. Its only factors are one and itself.
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(3x - 2)(5x + 6)
325 is a triangle number. The exponents in the prime factorization are 2 and 1. Adding one to each and multiplying we get (2+1) (1+1)= 3x2 =6 Therefore 325 has exactly 6 factors
x(6x - 11)
66x^3 - 36x^2 = 6x^2(11x - 6) 55x - 30 = 5(11x - 6) 66x^3 - 36x^2 + 55x - 30 = (6x^2 + 5)(11x - 6)
If that's 3x2 - 7x + 4, the answer is (3x - 4)(x - 1)