5. Use synthetic division to find the zeroes of : f(x)=2x^3+x^2-5x+2

6. For the following function, (a) state the domain, (b) identify all intercepts, (c) find any vertical or horizontal
asymptotes, and (d) identify any removable discontinuities.
f(x)=5(x+4)/x^2+x-12

there are several handy synthetic division calculators online for you to check your work. The text formatting here does not make it feasible to show.

f(x) = 5(x+4)/((x+4)(x-3)) = 5/(x-3) for all x ≠ -4
the domain is all reals except where the original denominator was zero: x = -4, 3

x-intercepts: 3
y-intercept is at f(0) = -5/3

vertical asymptote: x = 3
horizontal asymptote: y = 0

removable discontinuity at x = -4. Just define f(-4) = -5/7