Question

rezolvati ecuatia
2x^2-5x+2=0

Answer 1

2x²-5x+2=0

2x²-x-4x+2=0

x(2x-1)-2(2x-1)=0

(2x-1)(x-2)=0

2x-1=0

2x-1+1=0+1

2x=0+1

2x=1

2x:2=1:2

x=1:2

$x = \frac{1}{2}$

x-2=0

x-2+2=0+2

x=0+2

x=2

S={$\frac{1}{2}$;2}

Answer 2

Răspuns:

Explicație pas cu pas: