maria7515
maria7515 maria7515
  • 02-05-2019
  • Mathematics
contestada

Find the value of this expression if x=-6 x^2-6/x-4

Respuesta :

9826zed
9826zed 9826zed
  • 02-05-2019

Answer:

x=−0.825789

Step-by-step explanation:

x=(−6x3−4x−6)/x

Step 1: Multiply both sides by x.

x2=−6x3−4x−6

x2−(−6x3−4x−6)=−6x3−4x−6−(−6x3−4x−6)(Subtract -6x^3-4x-6 from both sides)

6x3+x2+4x+6=0

(Use cubic formula)

x=−0.825789

Answer Link
jimrgrant1 jimrgrant1
  • 02-05-2019

Answer:

- 3

Step-by-step explanation:

Substitute x = - 6 into the expression

[tex]\frac{(-6)^2-6}{-6-4}[/tex]

= [tex]\frac{36-6}{-10}[/tex] = [tex]\frac{30}{-10}[/tex] = - 3

Answer Link

Otras preguntas

1.133 g of silver nitrate was heated in an open tube. The silver residue weighed 0.720 g. During the reaction 0.307 g of nitrogen dioxide was also produced. Th
What are the natural resources in venice,italy?
If every positive number has two square roots and you can find the length of the side of a square window by finding a square root of the area, why is there only
Factor the expression -10x^2-41x-21
Which best describes Germany’s standard invasion strategy at the beginning of World War II?a. Attack with a combination of speed and overwhelming forceb. Intimi
If every positive number has two square roots and you can find the length of the side of a square window by finding a square root of the area, why is there only
how to solve x to the power of 2 = 14
Containment was a policy in which the U.S. tried to do what?
1/7(x+21)=-6 answer ?
What are the natural resources in venice,italy?