Question

Si a-y=5 ; ay = 2 hallar a2 + y2

Answer 1

Explicación paso a paso:

a -y =5

a = 5 +y

ay =2

(5 +y) y =2

5y + y^2 =2

y^2 = 2 -5y

a^2 + y^2

a^2 +(2 -5y)

a ^2 +2 -5y

(5 +y)^2 +2 -5y

25 + 10y + y^2 +2 -5y

25 +10y +2 -5y +2 -5y

29