anonymous
  • anonymous
identify the solutions to the equation when you solve by completing the square
Mathematics
  • Stacey Warren - Expert brainly.com
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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
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anonymous
  • anonymous
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anonymous
  • anonymous
4x^2- 20X+25= 0 Make two sets of parenthesis. because x is squared, x will be the start of both parenthesis (x ) (x ). it's either 4, 1 or 2, 2 for before the X's. ( one number for each, using the fact tree idea) .. continuing
anonymous
  • anonymous
guessing which goes where is the fight next. if (2x- ) (2x+ ) then that would = 4x^2 the "outers" are next. the last two "outers have to be multiplied to get 25, but add up to the 20.

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anonymous
  • anonymous
so, the factors of 25 are ( 1,5, 25) any others?
anonymous
  • anonymous
ok, so it looks like 2 and 2 won't work. try 4 and 1 (4x-5) (x+5). = 4x^2 +20x- 5x-25= 4x^2+15X-25 This is close!! Now we need to change the signs in the middle, they don't work.
anonymous
  • anonymous
options are a. -2.5, 2.5 b.2.5 c.-2.5 d.no real solutions
anonymous
  • anonymous
(4x-5) (x-5) =4x^2-20x-5x+25= 0 4x^2-25x=-25 Wish I had known you HAVE the answers.. You just needed to plug them in to see if they work!! lol But now you can see how to work through the problem... Enjoy!
anonymous
  • anonymous
what is the answer?
anonymous
  • anonymous
How old are you? Have you done this before? in school?
anonymous
  • anonymous
PLug in the numbers ( choices) as X and see if they work.
anonymous
  • anonymous
thanks!! i got it

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