How to solve or factorize this equation? help please
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Hello, You can observe that the sum of the coefficients is 0. So 1 is solution. This means that you can factorise by (x-1). So Where Q(x) is a polynom of degree 3 -> Q(x)=ax^3 + bx² + cx + d, with a,b,c,d to determine by developping (x-1)Q(x).
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Originally Posted by wingless ---> ---> wingless is right. i'd just like to point out that we can solve using the sum of two cubes formula (if you don't see the solution immediately). so, , and now equate each term in the product to zero and solve.
Originally Posted by wingless ---> ---> You missed out on two complex solutions. Now let each factor be zero and solve. -Dan