Question
Solve the inequality
Solve the inequality by testing the values in the interval
Solve the inequality by separating into cases
Solve for x
x∈(−∞,21)∪(1,+∞)
Evaluate
2x2−3x+1>0
Rewrite the expression
2x2−3x+1=0
Factor the expression
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Evaluate
2x2−3x+1
Rewrite the expression
2x2−x−2x+1
Factor out x from the expression
x(2x−1)−2x+1
Factor out −1 from the expression
x(2x−1)−(2x−1)
Factor out 2x−1 from the expression
(x−1)(2x−1)
(x−1)(2x−1)=0
When the product of factors equals 0,at least one factor is 0
x−1=02x−1=0
Solve the equation for x
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Evaluate
x−1=0
Move the constant to the right-hand side and change its sign
x=0+1
Removing 0 doesn't change the value,so remove it from the expression
x=1
x=12x−1=0
Solve the equation for x
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Evaluate
2x−1=0
Move the constant to the right-hand side and change its sign
2x=0+1
Removing 0 doesn't change the value,so remove it from the expression
2x=1
Divide both sides
22x=21
Divide the numbers
x=21
x=1x=21
Determine the test intervals using the critical values
x<2121<x<1x>1
Choose a value form each interval
x1=−1x2=43x3=2
To determine if x<21 is the solution to the inequality,test if the chosen value x=−1 satisfies the initial inequality
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Evaluate
2(−1)2−3(−1)+1>0
Simplify
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Evaluate
2(−1)2−3(−1)+1
Evaluate the power
2×1−3(−1)+1
Any expression multiplied by 1 remains the same
2−3(−1)+1
Simplify
2+3+1
Add the numbers
6
6>0
Check the inequality
true
x<21 is the solutionx2=43x3=2
To determine if 21<x<1 is the solution to the inequality,test if the chosen value x=43 satisfies the initial inequality
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Evaluate
2(43)2−3×43+1>0
Simplify
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Evaluate
2(43)2−3×43+1
Multiply the terms
89−3×43+1
Multiply the numbers
89−49+1
Subtract the numbers
−89+1
Reduce fractions to a common denominator
−89+88
Write all numerators above the common denominator
8−9+8
Add the numbers
8−1
Use b−a=−ba=−ba to rewrite the fraction
−81
−81>0
Calculate
−0.125>0
Check the inequality
false
x<21 is the solution21<x<1 is not a solutionx3=2
To determine if x>1 is the solution to the inequality,test if the chosen value x=2 satisfies the initial inequality
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Evaluate
2×22−3×2+1>0
Simplify
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Evaluate
2×22−3×2+1
Calculate the product
23−3×2+1
Multiply the numbers
23−6+1
Evaluate the power
8−6+1
Calculate the sum or difference
3
3>0
Check the inequality
true
x<21 is the solution21<x<1 is not a solutionx>1 is the solution
Solution
x∈(−∞,21)∪(1,+∞)
Show Solution