Mathematics 55 Online
OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

are we ok?

OpenStudy (anonymous):

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

OpenStudy (anonymous):

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

OpenStudy (anonymous):

okay thank you ( :

OpenStudy (anonymous):

welcome!

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