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Question

Solve the polynomial inequality. express the solution set in in interval notation. 2x2+5x30

A
(,3)[12,]
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B
[3,12]
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C
(3,)
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D
[,12]
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Solution

The correct option is B [3,12]
given, 2x2+5x30
2x2+6xx30
2x(x+3)1(x+3)0
(2x1)(x+3)0
x[3,12]
Option B is correct.

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