anonymous
  • anonymous
I need to solve for 2x^2 -10x+3=0 using the quadratic formula. Any help?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
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.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
I am thinking, find a,b,c
anonymous
  • anonymous
But i feel as though i am getting it wrong.
welshfella
  • welshfella
quadratic formula is x = -b +/- sqrt (b^2 - 4ac) ------------------- 2a where a , b and c are the numbers in the equation ax^2 + bx + c = 0

Looking for something else?

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

More answers

anonymous
  • anonymous
a=2 b=-10 c=3
anonymous
  • anonymous
so plug these in ?
welshfella
  • welshfella
right
anonymous
  • anonymous
Ok, thanks a bunch.
welshfella
  • welshfella
watch the signs eg -b = - (-10)
anonymous
  • anonymous
I see.
anonymous
  • anonymous
would -b make the -10 positive 10?
welshfella
  • welshfella
yes
anonymous
  • anonymous
20--24/4
anonymous
  • anonymous
so 44 /4=10
anonymous
  • anonymous
x=10?
anonymous
  • anonymous
11* srry
welshfella
  • welshfella
you left out the sqrt its (10 + sqrt76 )/ 4 or ( 10 - sqrt76) / 4 perform the calculation in the parentheses first, then divid e by 4
anonymous
  • anonymous
OH!!!
anonymous
  • anonymous
silly me:)
anonymous
  • anonymous
what would be the square root i do not understand.
welshfella
  • welshfella
use your calculator - enter square root then 76
anonymous
  • anonymous
i see, so 11-sgrt76, but where is this 76 from?
anonymous
  • anonymous
2.28220211292 would be the answer
welshfella
  • welshfella
the 76 comes from the b^2 - 4ac of the formua:- 10^2 - 4*2*3 = 100 - 24 = 76
anonymous
  • anonymous
I see. Thank you for your time. :)
welshfella
  • welshfella
ok where did you get 2.25 from?
welshfella
  • welshfella
2.28 and so on?
anonymous
  • anonymous
11-sgrt76=2.28 sir
welshfella
  • welshfella
10 - sqrt76 = 10 - 8.72 - 1.28 but you now have to divide by 4 x = 1.28 / 4 = 0.32
anonymous
  • anonymous
hm, i see. that would be .32 OK
welshfella
  • welshfella
thats one root and the other is (10 + sqrt76 )/ 4
anonymous
  • anonymous
i completely forgot;/
welshfella
  • welshfella
these quadratics can have 2 roots
anonymous
  • anonymous
Hm.

Looking for something else?

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