SOLUTION: I need to determine whether 2 is a root of x to the 3rd power+x to the 2nd power-5x=2.

SOLUTION: I need to determine whether 2 is a root of x to the 3rd power+x to the 2nd power-5x=2.

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Question 55543: I need to determine whether 2 is a root of x to the 3rd power+x to the 2nd power-5x=2.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I need to determine whether 2 is a root of x to the 3rd power+x to the 2nd power-5x=2.
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Substitute and see if you get a true statement.
2^3+2^2-5(2)=2
8+4-10=2
2=2
It is true, so 2 is a root.
Cheers,
Stan H.
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