Recent content by Rowah

OHH OHH OHHHH OHHHHHH! Oh my god, how could I be so blind? That t^2 at the end threw me off. I feel like such an idiot. Thanks a billion cristo and robb, and I apologize for wasting your time :)

Is there some trick to this that I am missing? 4(7s^2 + 2st - 5t^2)

Homework Statement 28s^2 + 8st - 20t^2 The answer in the back of the book is 4(7s - 5t)(s + t) 2. The attempt at a solution 4(7s^2 + st + st - 5t^2) 4(7s^2 + st + st - 20t^2) 4(s(7s + t) + t(s - 20t)) I'm lost, can someone please help me? Thanks in advance.

One word to describe HallsofIvy.. Brilliant! You end up with A=5, thanks I understand it now :D

In my experience there are errata in textbooks, especially math ones. The people that compose the answers do so hurriedly and there is room for error. It could be possible that the answer is simply part of the growing errata that exists in our academic world.

Hmm, when you sub f(4) = 50 in f(x)=(2x-3)(x-2) You end up with 50=10 Am I on the right track towards implementing that "5" into my final equation?

This is the problem: A quadratic function f(x) with integral coefficients has the following properties: f(3/2)=0, (x-2) is a factor of f(x), and f(4) = 50. Determine f(x). The answer in the back of the book is f(x)=5(2x-3)(x-2) I can easily understand the (2x-3) and (x-2), but I don't...

Cool, I understand now, thanks, "a" messed me up, I didn't know you could do f(a), I thought it was only f(x).

Simple Factoring Problem How do I factor a^5-32? It isn't a difference of cubes or even a difference of squares :( By the way, we're currently learning the factor theorem.

Cool, I finished the assignment, thanks guys :D

Sorry, I'm only in Grade 12 physics, I don't understand >_< I have no idea what "s" and "u" are.

My teacher gave me a project that requires us to find the angle that "produces the maximum range for a trebuchet with a release speed of 50 m/s." My (Delta)h value is +46 and I have to calculate the range produced by 5 different angles, graph it, and find the best angle to a hundredth of a...

Basically, with calculus you learn the Derivative, Limit and Integral in fine detail, with precalculus you learn all sorts of concepts in less detail. Its all about Mass concepts vs. Fewer, more complex concepts.

By the way Bliss, what was the teacher's answer?

Ok thanks waterchan, that's what my teacher said today :D