find the nature the roots of 9x2= - 1
Answers
Answered by
0
Answer:
Step-by-step explanation:
For
a
x
2
+
b
x
+
c
=
0
, the values of
x
which are the solutions to the equation are given by:
x
=
−
b
±
√
b
2
−
4
a
c
2
a
The discriminate is the portion of the quadratic equation within the radical:
b
2
−
4
a
c
If the discriminate is:
- Positive, you will get two real solutions
- Zero you get just ONE solution
- Negative you get complex solutions
To find the discriminant for this problem substitute:
9 for a
6 for b
1 for c
6
2
−
(
4
⋅
9
⋅
1
)
⇒
36
−
36
⇒
0
Because the Discriminant is
0
there is just ONE solution for this equation.
Answered by
0
Answer:
17 is ans
Step-by-step explanation:
because 9×2=18
18-1=17
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