Graph the following quadratic equations and state their natura of solutions.
x² - 9x + 20 = 0
Answers
Answered by
1
Step-by-step explanation:
Nature
D = b^2-4ac
D= (-9)^2 -4×1×20
D = 81-80
D = 1
So nature of roots is Real and Distinct roots.
Answered by
0
Answer:
Here is your ans
Step-by-step explanation:
⇒
The given quadratic equation is
9
x
2
−
9
x
+
2
=
0
, comparing it with
a
x
2
+
b
x
+
c
=
0
⇒
We get,
a
=
9
,
b
=
−
9
,
c
=
2
⇒
x
=
−
b
±
√
b
2
−
4
a
c
2
a
=
−
(
−
9
)
±
√
(
−
9
)
2
−
4
(
9
)
(
2
)
2
(
9
)
=
9
±
√
81
−
72
18
=
9
±
√
9
18
=
9
±
3
18
=
3
±
1
6
⇒
x
=
3
+
1
6
and
x
=
3
−
1
6
∴
x
=
2
3
and
x
=
1
3
Similar questions