Question

using the grouping method factor the polynomial completely 5x^5+30x^3+25x

Answer 1

What's common in this? @Torrie11

Answer 2

First take 5x out of the equation for they all share it.
5x (x^4+6x^2+5)
Now a polynomial such as this: (x^4+6x^2+5) can be factored just as you factor (ax^2+bx+c), except all degrees are doubled.
Now x^2+6x+5 would be factored as (x+5)(x+1)
All you do now is double the degrees of x.
(x^2+5)(x^2+1)
Then tack on that 5x you took out to begin with:
5x(x^2+5)(x^2+1)

Answer 3

That's not the factor by grouping method.

Answer 4

@flixoe