or does the irrational factors take it ourside the curriculum.
See the attachement as this web format does not like Mathtype
Teacher Discussion Forum for Math 30-1
Does this question still fit the curriculum
Re: Does this question still fit the curriculum
From CARC Session with Alberta Education Sept. 2012 ... they said
students are to be able to recognize from a graph that no real roots exist, but will not be expected to calculate them
Re: Does this question still fit the curriculum
I agree but these are real roots just not rational.
The curriculum says integer coefficients for polynomials but would be doing a difference of squares factoring giving irrational roots be beyond what we would expect of these students?
Re: Does this question still fit the curriculum
Jenny Kim from Alberta Education sent this reply:
I've talked to my cohorts in curriculum as well, and we all agree that this question would be fine. As long as you are dividing by a factor of the form (x - a), where a is an integer, which is the case for this example, the remaining quadratic factors do not need to be of the form (x - a).