# Thread: Solve this easy Mathematical Equation :D

1. Originally Posted by ASoldSoul
Soooo easy:

1/x= 4-x
x(4-x)=1
4x-x2=1
x2(x squared)-4x+1=0
(x- 2)(x-2 )=0
x=2 x=2 easy, thank you for reminding me of factorizing, really thanks mate.
so 2 + 1/2 = 4?
GG

---------- Post added at 12:26 AM ---------- Previous post was at 12:25 AM ----------

3.732050808 + 1/3.732050808 = 4
Use a calculator.

2. x + 1/x = 4
x - 4 = -1/x
* x => x^2 - 4x = -1
x^2 -4x + 1 = 0

Then...
Well solved.

3. The answer is....coming in 6hours

4. lel easy equation,

x=2-√3
x=2+√3

5. The solution has been posted !! (On the first page)
Originally Posted by walid1010
lel easy equation,

x=2-√3
x=2+√3
Post the steps... how did u solve it.

Originally Posted by Youtro
3.732050808
^the answer. Btw I just learned how horrible in math the rest of the world is.
True, people suck soo bad at maths x]

Originally Posted by Kenshin13
x + 1/x = 4
x - 4 = -1/x
* x => x^2 - 4x = -1
x^2 -4x + 1 = 0

Then...
Well solved.
Ahaaa i was like you xD, i stoped at the x^2 - 4x +1 part, then i took out a paper, and spent 10 minutes on the toilet trying to figure it out XDD
--
Originally Posted by Kenshin13
Soooo easy:

1/x= 4-x
x(4-x)=1
4x-x2=1
x2(x squared)-4x+1=0
(x- 2)(x-2 )=0
x=2 x=2 easy, thank you for reminding me of factorizing, really thanks mate.
Aha nope :P, you cannot factor 1/x, but you can factor something like x/4 example :

x + x/4 + 3x = 0
x(1 + 1/4 + 3) = 0
17x/4 = 0
17x = 4 * 0 ------> x = 17 * 0 -------> x = 0
x = 0

6. Originally Posted by pedbera
The solution has been posted !! (On the first page)

Post the steps... how did u solve it.[COLOR=Silver]
ok then.

Solve for x over the real number

x+1/x=4 write
(the left hand side as a single fraction)

Bring x+1/x together using the common denominator x:

x^2+1/x=4
(multiply both sides by a polynomial to clear fraction)

Multiply both sides by x:

x^2+1=4x
(move everything to the left hand side)

Subtract 4x from both sides

x^2-4x+1=0
(solve the quadratic equation by completing the square)

Subtract 1 from both sides:

x^2-4x=-1
(take one half of the coefficient of x and square it. then add it to both sides)

x^2-4x+4=3
(factor the left hand side)

Write the left hand side as a square:

(x-2)^2=3
(eliminate the exponent on the left hand side)

Take the square root of both sides:

x-2=√3 or x-2=-√3
(look at the first equation: solve for x.)

x=2+√3 or x-2=-√3
(look at the second equation: solve for x.)

x=2+√3 or x=2-√3

eh,told you easy

7. Holy shit, it's like all the people who posted in this thread are asians.

I didn't understand a single word/number.

8. really you're posting some math bs and it's summer?

9. Originally Posted by temeXiii
really you're posting some math bs and it's summer?
Hah.., i obviously did not post it for you.

10. Well give this a shot. It's actually really easy, but most peoples minds interpret it incorrectly.

A bat and a ball cost a dollar and ten cents in total. The bad costs a dollar more than the ball. How much does the ball cost?

11. The answer you provided is only half correct. /smh

12. IT'S FUCKING SUMMER YOU FOOLS

13. I am really good at math, now i fucking forgot how to do this.

14. My head hurts from looking at that.

15. Originally Posted by Ghost
The math part of my brain turn into mush during the summer, might be due to all the alcohol
That part of my brain is and always has been mush.

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