Решите уравнения : x²+38x+345=0

Question

Решите уравнения :

x²+38x+345=0

Answer 1

X^2 + 38x + 345 = 0 
D = 38^2 - 4*345 = 1444 - 1380 = 64 = 8^2
x1 = ( - 38 + 8)/2 = - 30/2 = - 15
x2 = ( - 38 - 8 )/2 = - 46/2 = - 23