Задание 1. a) (3x-5y)(3x+5y) б) (7a-8b)(7a+8b) в) (13c-11d)(13c+11d) г) (8m-9n)(8m-9n)

Question

Задание 1.
a) (3x-5y)(3x+5y)
б) (7a-8b)(7a+8b)
в) (13c-11d)(13c+11d)
г) (8m-9n)(8m-9n)

Answer 1

A)9x2-25y2
б)49а2-64b2

Answer 2

A) (3х)^2-(5у)^2
б) (7a)^2-(8b)^2
в) (13c)^2-(11d)^2
г) (8m-9n)^2