please help... fully factorise the following: x^4 + 4 factorise the following: 18(x+1)^2 - 9(x+1) - 2
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For the first question let y=x^{2} For the second question let y=x+1 Then you have quadratic equations to factorize which you can do with the quadratic formula. Some factors will be complex numbers.
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