13. What is the value of discriminant of the equation x2 - 8x + 16 = 0?
Answers
Answered by
1
Step-by-step explanation:
The discriminant is defined as
D
=
B
2
−
4
A
C
If
D
>
0
there are two solutions to the equation
If
D
=
0
there is one solution
If
D
<
0
there is no solution (in real numbers)
In your case
D
=
8
2
−
4
⋅
1
⋅
16
=
0
→
one solution.
The equation can be written as
(
x
+
4
)
2
→
x
=
−
4
Answered by
0
Step-by-step explanation:
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