Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

Let the solution (x, y, z) satisfy the following equations: x + y + z = -1, xy + xz + yx = -17, xyz = -15. If x < y < z, what is the value of: x - 2y + 4z?

Mathematics
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SIGN UP FOR FREE
And this is supposed to be a speed math question as in you should be able to do this in like 30 seconds...not sure how to do it though...
its also...vector like...
Almost...

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

I meant
Seriously? That's like 5 questions that pertain to vectors when I have not learned them... :/
well for starter the biggest lead is xyz=-15 that shows me that there has to be a 1,3 and 5 involved
next x+y+z=-1 -5+3+1=-1
But when you plug it into xy + xz + yx, it doesn't work...
I think that also fails the x < y < z
since in your case y > z
well no u wld just switch around the variables that is no big deal
Maybe let x = -5, y = 1, z = 3
Did you mistype the problem? Or is it correct as written? Should it be "xy + xz + yz = -17" instead of "xy + xz + yx = -17?"
That's what it says on the document...thinking it's a typo though...
Alright. I think it is just a typo. Thanks swiss!

Not the answer you are looking for?

Search for more explanations.

Ask your own question