b) Rationalize this expression to find polynomials p(x ), q(x) and r(a ) such that Vx- 4 2x - Vx- -7x p(x) Vq(x) + r(x) FORMATTING: Write your answer in the form p(x ), q(a), r(x) , including square brackets and commas between the terms. Use strict scientific calculator notation in your answer, in particular * for multiplication (e.g. 3- is written 3*x^2, and 2(3x + 1) is written 2*(3*x+1)). Note that you should not have sqrt() in your answer Answer: p(x), q(x), "(2)] - [97X x (x+2),x (x-7)] c) Simplify the expression from part (b) so that the numerator is a constant. Use the fact that . = 1 and present your answer in the form p(x) C q(x) + Vr(x) s(x) + Vi(x) where C is a constant and s(x) and t(x ) don't diverge to do as a increases FORMATTING: Write your answer in the form |C, s(x), t(a), including square brackets and commas between the terms. Use strict scientific calculator notation in your answer, in particular * for multiplication (e.g. 3x- is written 3*x^2, and 2(3x + 1) is written 2*(3*x+1)). Note that you should not have sqrt in your answer. Answer: C, s(x), t(2)