(5x-y):(5x+y) при x=4 y= -10

Question

(5x-y):(5x+y) при x=4 y= -10

Answer 1

5×4+10/5÷4-10=30/10=3

Answer 2

Если x=4 y= -10,то (5x-y):(5x+y) = (5*4-(-10)):(5*4-10)=(20+10):(20-10)=30:10=3.
Ответ:3.