8x^3+y^3 Don't know how to factor down?

fran2009-09-02T21:00:25Z

Favorite Answer

a^3 +b^3 = (a+b)(a^2 -ab +b^2)
8x^3+y^3= (8x +y)(64x^2 - 8xy +y^2)

02

Anonymous2009-09-02T21:04:20Z

8x^3 + y^3
= (2x)^3 + (y)^3
= (2x+y)(4x^2 -2xy + y^2 )

That's it !!
Follow the pattern ..
When you get minus ..See the Upper Answer of the other guy :D

00

Faz2009-09-02T20:59:31Z

Sum of Cubes:
(2x+y)(4x² - 2xy + y²)

11

Chocolate Obama2009-09-02T21:01:28Z

sum of two cubes
(2x+y)(4x^2-2xy+y^2)

(a+b)(a^2-ab+b^2)

01

?2009-09-02T20:59:12Z

S.O.A.P.

same opposite always positive :D

02

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