Understanding Engineering Mathematics

(iv) 64− 576 x+ 2160 x^2 − 4320 x^3 + 19440 x^4 − 2916 x^5 + 729 x^6

(v) 243s^5 − 810 s^4 t+ 1080 s^3 t^2 − 720 s^2 t^3 + 240 st^4 − 32 t^5

C. (i) 14 (ii) 226
D. (i) 1.105 (ii) 0.984