anonymous
  • anonymous
Solve. 2x2 + x – 1 = 9
Mathematics
jamiebookeater
  • jamiebookeater
See more answers at brainly.com
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.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
let me post the answer choices!
anonymous
  • anonymous
Do you me 2^2?
pooja195
  • pooja195
subtract the 9 so we have the equation = to 0 \[\huge 2x^2+x-10\] them multiply a*c |dw:1433014431435:dw| factor it out the factors are 5 and -4 they add to 1 and multiply to -20

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

pooja195
  • pooja195
(x+5)=0 (x-4)=0
pooja195
  • pooja195
then just solve the equations :) x+5=0 x-4=0
mathmate
  • mathmate
Faster than the answer choices!
anonymous
  • anonymous
the answer is 6
anonymous
  • anonymous
|dw:1433014411133:dw|
pooja195
  • pooja195
@pflorido explain your answer
anonymous
  • anonymous
i just posted the choices!
pooja195
  • pooja195
@ninowletonzalez06 your answer choices are hard to read :/
anonymous
  • anonymous
if you have trouble tell me which one to do again!:)
pooja195
  • pooja195
they dont match up with my work .-. thats weird :/ solve this see if they match up :/ x+5=0 x-4=0
mathmate
  • mathmate
2x^2+5x-4x-10=0 x(2x+5)-2(2x+5)=0 (x-2)(2x+5)=0 so x=2 or x=-5/2
mathmate
  • mathmate
It's one step more when the coefficient of x^2 is not one!
anonymous
  • anonymous
so c?
pooja195
  • pooja195
oh lol i missed a step oops sorry! >_< yeah @mathmate has the work :) and yes its C :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.