Question

cum se calc ec de gradul 2 16x^2+5x-19=0​

Answer 1

Răspuns:

16x^2+5x-19=0

x={(-5) +/- radical[5^2-

4×16×(-19)]} / (2×16)

x= {(- 5)+/-radical[25+1216)]} / 32

x=(-5)+/- radical (1241)/ 32

x 1 = (-5)- radical(1241) /32

x 2= (-5)+ radical(1241) / 32

Explicație pas cu pas: