Recent content by blinky

Thanks again.

Thanks very much. I'll tell her. Did you know just from looking at the equation that it had to be solved that way? If so, how did you know?

Hi, I'm trying to help a high-school sophomore with a math problem, and unfortunately my algebra days are long behind me. Here's the equation: x^3-9x-440=0 I know x=8, but I don't know how to find it. I'd appreciate some guidance. Thanks.