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Show that x=2 is a solution of the equation x^3-x-6=0
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Show that x=2 is a solution of the equation x^3-x-6=0

User Ofey
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2 Answers

5 votes
X^3-X-6=0
X=2
2^3=8
8-2-6=0
8-2=6
6-6=0
User SeaBean
by
7.8k points
1 vote
You insert 2 instead of x and then check if the equation is correct. You get:


2^3-2-6=8-2-6=0, thus
x=2 is a solution.
User Allen S
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7.2k points
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