Question
10(31x−1)×32x=−2x
Solve the quadratic equation
Solve by factoring
Solve using the quadratic formula
Solve by completing the square
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x1=0,x2=1021
Alternative Form
x1=0,x2=2.1
Evaluate
10(31x−1)×32x=−2x
Multiply
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Evaluate
10(31x−1)×32x
Multiply the terms
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Evaluate
10×32
Multiply the numbers
310×2
Multiply the numbers
320
320(31x−1)x
Multiply the terms
320x(31x−1)
320x(31x−1)=−2x
Expand the expression
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Evaluate
320x(31x−1)
Apply the distributive property
320x×31x−320x×1
Multiply the terms
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Evaluate
320x×31x
Multiply the numbers
920x×x
Multiply the terms
920x2
920x2−320x×1
Any expression multiplied by 1 remains the same
920x2−320x
920x2−320x=−2x
Move the expression to the left side
920x2−314x=0
Factor the expression
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Evaluate
920x2−314x
Rewrite the expression
92x×10x−92x×21
Factor out 92x from the expression
92x(10x−21)
92x(10x−21)=0
When the product of factors equals 0,at least one factor is 0
10x−21=092x=0
Solve the equation for x
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Evaluate
10x−21=0
Move the constant to the right-hand side and change its sign
10x=0+21
Removing 0 doesn't change the value,so remove it from the expression
10x=21
Divide both sides
1010x=1021
Divide the numbers
x=1021
x=102192x=0
Solve the equation for x
x=1021x=0
Solution
x1=0,x2=1021
Alternative Form
x1=0,x2=2.1
Show Solution
