No 10 kak pakai cara ya :)

(a + b)^5 = a^5 + pa^4b + qa^3b^2 + ra^2b^3 + sab^4 + b^5
(a + b)^5 = a^5 + 5a^4b + 10a^3b^2 + 10a^2b^3 + 5ab^4 + b^5

p = 5 ; q = 10 ; r = 10 ; s = 5

5p - 2q + 3r = 5x5 - 2x10 + 3x10 = 25 - 20 + 30 = 35 (A)