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Without an equality sign the given expression can't be classed as an equation and so therefore it has no solution.
(x+5)^2 and therefore x = -5
x4 - 1.We can not "solve" this as we have not been told the value of x. However, we can simplify this expression:We have an x and a minus x here which will cancel out. Likewise the x2 and x3 will cancel out with the -x2 and -x3 respectively. This therefore leaves us with just x4 - 1.
x2 + 4x + 3 = 0 (x + 1)(x + 3) = 0 x ∈ {-3, -1}
x(x - 1) = x2 + x x2 - x = x2 + x The only solution to this equation is x = 0
x2+5x+6 = (x+2)(x+3) when factored because 2 and 3 are factors of 6