Question

Преобразуйте в многочлен (5а+3b)^2. (7x-4)^2. (8a+5b)(5b-8a). (-3m^2+n)

Answer 1

(5а+3b)^2 = 25a^2+30ab+9b^2
(7x-4)^2 = 49x^2-56x+16
(8a+5b)(5b-8a) = 25b^2-64a^2