Question

factor 15x^3-6x^2-25x+10 by grouping. how do you do this?

Answer 1

group as:
(15x^3 -25x) -(6x^2-10)

Answer 2

=5x(3x^2-5)-2(3x^2-5)=(5x-2)*(3x^2-5)

Answer 3

are we ok?

Answer 4

is that what you do with most of them is put a squared number and a normal number together?

Answer 5

most of the time... you are trying to recognize common multiplier(s)
it not always easy, so you may try few variations....:)

Answer 6

okay thank you ( :

Answer 7

welcome!