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

what is a complex set of responses
Where are slides placed on a microscope?
My daugher is trying to Solve -7.8x=-1.56
Name three desirable traits that are being transferred into genetically egineered food crops. How might these traits help to increase world food supplies?
Where are slides placed on a microscope?
Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decrease
Explain why 58 can be rounded to the nearest hundred even though there is not a digit in the hundreds place?
When you divide a whole number by a whole number( other then one), the quotient is a smaller number?
When this 3-digit number is rounded to the nearest hundred it rounds down to 900.  The digit in the ones places is the fifth odd number that you count beginning
what is equivalent to 0.4 and 1.4 some one plese help