5x2+13x+5=0 дискриминат 123456789012345678901234

Question

5x2+13x+5=0 дискриминат 123456789012345678901234

Answer 1

5x²+13x+5=0

a= 5

b= 13

c= 5

D= b²-4ac

D= 13²-4*5*5= 169-100= 69

x¹= -b-√D/4a (/ дріб)

x¹= -13-√69/5*2= -13-√69/10

x²= -b+√D/4a

x²= -13+√69/5*2= -13+√69/10