Question

-P elevada a 2 +5p-4=0

Answer 1

-p² +5p -4 = 0. ==> *(-1)

p² -5p +4= 0 => b/c=-5/4 = -1-4/-1*-4

(p -1). (p -4)=0

p'=1 p"=4 <=====©