Problem

List the critical values of the related function. Then solve the inequality.
x5x+3x+4x20
The critical value(s) is/are 0 .
(Simplify your answer. Type an integer or a simplified fraction. Type an exact ansu

Answer

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Answer

Therefore, the solution to the inequality x23x2(x+3)(x2)0 is x(,3][1,2)

Steps

Step 1 :Given the inequality x5x+3x+4x20

Step 2 :Simplify the inequality to get x2+3x+2(x+3)(x2)0

Step 3 :Rewrite the inequality as x23x2(x+3)(x2)0

Step 4 :Solve the equation x23x2=0 to get the solutions x=1,2

Step 5 :Fill in a sign chart for the intervals x<3, 3<x<1, 1<x<2, and 2<x

Step 6 :From the sign chart, we find that the expression is positive when x(,3][1,2)

Step 7 :Therefore, the solution to the inequality x23x2(x+3)(x2)0 is x(,3][1,2)

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