47.3k views
3 votes
Find the value of this expression is x=-8
x^2+6/x-6

User Timo Ernst
by
5.0k points

1 Answer

3 votes

Answer:

x=0.61933

Explanation:

Let’s solve your equation step by step.

Step 1: Multiply both sides by x.

x

2

=

8

x

3

6

x

+

6

x

2

(

8

x

3

6

x

+

6

)

=

8

x

3

6

x

+

6

(

8

x

3

6

x

+

6

)

(Subtract -8x^3-6x+6 from both sides)

8

x

3

+

x

2

+

6

x

6

=

0

(Use cubic formula)

x

=

0.61933

Check answers. (Plug them in to make sure they work.)

User Pigrammer
by
5.0k points
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