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I believe it is prime as you have written it.

change the end to + 81 and it factors as

(2x - 1)(x-9)(x+9)

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11y ago
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Q: How do you factor 2xcubed minus x squared minus 162x minus 81?
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What is 81 equal to in multiplication?

9x9, 81x1, 3x27, 162x.5 , etc.


How many solutions are in 6x plus 156(x-3)?

None but it can be simplified to: 162x-468


5x equals 3x plus 16?

5x = 3x + 16Taking the 3x to the left side of the equation and changing its sign5x - 3x = 162x = 16Divide by 2x = 8


What is the square root of 5x plus 7 equals 13?

That could mean two different equations, so I'll solve both.1. (√5x)+ 7 = 13(√5x)= 65x = 36x = 36/5= 7 1/52.√(5x+7) = 135x + 7 = 1695x = 162x = 162/5= 31 2/5