Grade?
I think I found it out but the formula is (a[3] -b[3])=(a-b)(a[2]+ab+b[2])
This can't be factored. Unless you are using imaginaries to do it, it's unfactorable.
What?But i got (x-10)(x^2+10x+100)That right?
Ok now different kinds of problemsEx.) Solve x^3-27=0
Wrong.
I understand it all now the answer to x^3-27=0 is x=3, -3+-3i sqrt3/2or x equals three and negative three plus or minus three i times the square root of three over two