Question

tolong la kak nomor 2

Answer 1

Rumusnya: ax^2+bx+c = 0
alfa+beta = (b/a)
alfa*beta = (c/a)

Jadi
alfa+beta = 1/1 = 1
alfa*beta = 5/1 = 5

2/alfa + 2/beta = 2(alfa+beta) / alfa*beta
= 2(1) / 5
= 2/5