Move all terms not containing
x
x
to the right side of the inequality.
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−
x
2
≤
15
-
x
2
≤
15
Divide each term in
−
x
2
≤
15
-
x
2
≤
15
by
−
1
-
1
and simplify.
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x
2
≥
−
15
x
2
≥
-
15
Multiply both sides by
2
2
.
x
2
⋅
2
≥
−
15
⋅
2
x
2
⋅
2
≥
-
15
⋅
2
Simplify.
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x
≥
−
30
x
≥
-
30
The result can be shown in multiple forms.
Inequality Form:
x
≥
−
30
x
≥
-
30
Interval Notation:
[
−
30
,
∞
)
