Inequality: 33371
Solve the quadratic inequality: -2x
2
+ 4x + 6 <0
Result
O : (Correct answer is: )
Step-by-step explanation:
−
2
x
2
+
4
x
+
6
<
0
2
x
2
−
4
x
−
6
>
0
2
x
2
−
4
x
−
6
=
0
2
x
2
−
4
x
−
6
=
0
2
.
.
.
prime number
4
=
2
2
6
=
2
⋅
3
GCD
(
2
,
4
,
6
)
=
2
x
2
−
2
x
−
3
=
0
a
=
1
;
b
=
−
2
;
c
=
−
3
D
=
b
2
−
4
a
c
=
2
2
−
4
⋅
1
⋅
(
−
3
)
=
1
6
D
>
0
x
1
,
2
=
2
a
−
b
±
D
=
2
2
±
1
6
x
1
,
2
=
2
2
±
4
x
1
,
2
=
1
±
2
x
1
=
3
x
2
=
−
1
(
x
−
3
)
(
x
+
1
)
>
0
x
>
3
∧
x
>
−
1
x
<
3
∧
x
<
−
1
x
>
3
∨
x
<
−
1
O
=
R
−
<
−
1
;
3
>
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Solve the quadratic inequality: -2x2 + 4x + 6
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You need to know the following knowledge to solve this word math problem:
algebra
quadratic equation
inequalities
sets
intersection of sets
Grade of the word problem:
high school
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