Question

Decideti prin verificare care dintre ecuatiile urmatoare are solutia x=-radical2. a)x+2=0; b)2-x=0; c)2x+radical8=0;x/radical2+1=0.mersi

Answer 1

Răspuns:

Explicație pas cu pas:

a) x + 2  = 0 => x = -2

b) 2 - x = 0 => x = 2

c) 2x + √8 = 0 => 2x = -√8 => x = -2√2/2 = -√2

d) x/√2 + 1 = 0 => x/√2 = -1 => x = -1/√2 = -√2/2