Question
Solve the equation
x1=−3318,x2=36
Alternative Form
x1≈−0.87358,x2≈1.817121
Evaluate
(x2×3x)2−(16(x2×3x))=36
Remove the parentheses
(x2×3x)2−(16x2×3x)=36
Simplify
More Steps

Evaluate
(x2×3x)2−(16x2×3x)
Multiply
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Multiply the terms
x2×3x
Multiply the terms with the same base by adding their exponents
x2+1×3
Add the numbers
x3×3
Use the commutative property to reorder the terms
3x3
(3x3)2−(16x2×3x)
Multiply
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Multiply the terms
16x2×3x
Multiply the terms
48x2×x
Multiply the terms with the same base by adding their exponents
48x2+1
Add the numbers
48x3
(3x3)2−48x3
Rewrite the expression
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Evaluate
(3x3)2
To raise a product to a power,raise each factor to that power
32(x3)2
Evaluate the power
9(x3)2
Evaluate the power
9x6
9x6−48x3
9x6−48x3=36
Move the expression to the left side
9x6−48x3−36=0
Factor the expression
3(x3−6)(3x3+2)=0
Divide both sides
(x3−6)(3x3+2)=0
Separate the equation into 2 possible cases
x3−6=03x3+2=0
Solve the equation
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Evaluate
x3−6=0
Move the constant to the right-hand side and change its sign
x3=0+6
Removing 0 doesn't change the value,so remove it from the expression
x3=6
Take the 3-th root on both sides of the equation
3x3=36
Calculate
x=36
x=363x3+2=0
Solve the equation
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Evaluate
3x3+2=0
Move the constant to the right-hand side and change its sign
3x3=0−2
Removing 0 doesn't change the value,so remove it from the expression
3x3=−2
Divide both sides
33x3=3−2
Divide the numbers
x3=3−2
Use b−a=−ba=−ba to rewrite the fraction
x3=−32
Take the 3-th root on both sides of the equation
3x3=3−32
Calculate
x=3−32
Simplify the root
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Evaluate
3−32
An odd root of a negative radicand is always a negative
−332
To take a root of a fraction,take the root of the numerator and denominator separately
−3332
Multiply by the Conjugate
33×332−32×332
Simplify
33×332−32×39
Multiply the numbers
33×332−318
Multiply the numbers
3−318
Calculate
−3318
x=−3318
x=36x=−3318
Solution
x1=−3318,x2=36
Alternative Form
x1≈−0.87358,x2≈1.817121
Show Solution
