RedheadSTL
New member
- Joined
- Aug 14, 2006
- Messages
- 7
Please tell me if I'm doing this right, and if not, what am I doing wrong. I'm so confused!
Factor Completly:
27X^3 + 9y^3:
(27x-27)(27x^2 + 729X + 729)
64x^3 + 9y^3:
(64X^2 - 675XY + 9Y^2)
Solve for X
6X^2 - X - 15 = 0
3(2x^2 - X-5)
10X^2 - 90 = 0
10(x^2 - 9)
Factor Completly:
27X^3 + 9y^3:
(27x-27)(27x^2 + 729X + 729)
64x^3 + 9y^3:
(64X^2 - 675XY + 9Y^2)
Solve for X
6X^2 - X - 15 = 0
3(2x^2 - X-5)
10X^2 - 90 = 0
10(x^2 - 9)