Вычислите (5+3i)(5-3i)(2+5i)(2-5i) (3+2i)-(3-2i)(5+i)-(i-5) (1-3i)(1+3i) (7-6i)(7+6i)

Question

Вычислите
(5+3i)(5-3i)
(2+5i)(2-5i)
(3+2i)-(3-2i)
(5+i)-(i-5)
(1-3i)(1+3i)
(7-6i)(7+6i)

Answer 1

Примени формулу разности квадратов

a^2-b^2=(a-b)(a+b)