hey guys, neeed help factorising these completely.
1. y^7 - y^3
2. y^5 * x^3 + y^3 * x^5
First, start by taking out the largest common factor between the two terms:
Now, note that the expression in parenthesis is the difference between two perfect squares:
So we have
Note that the last factor is also the difference of two squares, so we finally have:
See what you can do with the second one. It starts off pretty much the same way as this one.
hey for the 2nd question, i got this using your tactic.. thanks for that.. can you please check if ive done it correctly for the 2nd one.
P.S i tryed to take out the y^3 and x^3 first but that would leave me with (y^2 + x^2) and i dont think that can be factorized??