Question

3x(в кводрате )-5x+2=

Answer 1

$3 x^{2} -5 x +2=0 \ D=b^2-4ac=-5 ^{2} -4*3*2=25-24=1 \ x_{1} = frac{5+1}{2*3} =1 \ x_{2} = frac{5-1}{2*3} = frac{2}{3}$