Question

Select the two values of x that are roots of this equation.

Answer 1

Answer:

Step-by-step explanation:

We can use the formula of delta.(you can see it in the picture down below)

So:

a=2

b=-11

c=15

So delta=-11 x -11 - 4*2*15

delta=121-120

delta=1

x1=-(-11)+1/4

x1=11+1/4

x1=12/4

x1=3

x2=11-1/4

x2=10/4

x2=5/2

Answer 2

Answer:

3 ; 5/2

Step-by-step explanation:

Δ= 121 - 120 = 1

x1 = (11 + 1)/4 = 3

x2 = (11-1)/4 =5/2