Question

3x^2-5y^2/2x^2+xy+y^2 если x/y=3

Answer 1

Ответ:

ответ 27

Объяснение:

7/10+x=9/10

x = 9/10 - 7/10

x = 2/10

x = 1/5

52/63-x/63 = 25/63

x/63 = 52/63 - 25/63

x/63 = 27/63

x/63 = 3/7

x = 3/7 * 63

x = 3/1 * 9

x = 27/1

x = 27