Question

y elevado a 2 - 7 y + 10 = 0

Answer 1

$y^{2}$  - 7y + 10 = 0

$y^{2}$ - 2y - 5y + 10 = 0

y. (y-2)-5(y-2)=0

(y-2).(y-5)=0

y-2=0

y-5=0

R: y=2

y=5