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.

How to find the SUM of the solution of the equation: 8x^2+40x=16x

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

SEE EXPERT ANSWER

To see the expert answer you'll need to create a free account at Brainly

8x^2 + 40x = 16x (-16x) 8x^2 + 32x = 0 8x(x + 4) = 0 I'll let you take it from here.
Set 8x = 0 and (x +4) = 0 , then the results add together
Correct, since it asks for the sum. You get two results, one from either factor.

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

Thanks! How did you get 32x?
By subtracting 16x from both sides and then grouping like terms. Like this: 8x^2 +40x = 16x 8x^2 +40x -16x = 16x-16x 8x^2 +32x = 0
So you subtracted 16x-16x, do you also subtract 40x-16x? If so, wouldn't that equal 24x?
Yes. Haha thank you for catching that.
Embarassing.
haha. It's okay!
So after, do you divide each by 8?
Yeah. I get 8x^2 + 24x = 0 and you can take out a factor of 8x
So the answer would be 3?
Kind of almost.
You get a factor of (x+3) What x makes that factor 0?
you can factor out as 4x(2x+6) then set both to zero and you should end up with x= 0 & x = -3 and add them
So the answer is -3?
yep
That was easy! Thanks you guys!

Not the answer you are looking for?

Search for more explanations.

Ask your own question