Question

Помогите решить подробно,пожалуйста!!!

Answer 1

3x^2+8x-3=0
D=64-4*(-3)*3=100
х1=(-8+10)/6=1/3 
x2=(-8-10)/6=-3

Answer 2

D=b^2-4ac = 8^2-4*3*(-3)= √100 = 10

x1= -b-√D/2a = -8-10= -18 : 6 = -3
x2 = -b+√D/2a= -8+10 = 2:6 = 1/3