Question

4x^2-36x+81=0 Help please

Answer 1

quadratic formula :D

Answer 2

hint : (2x-a)(2x-a)

Answer 3

ugh hate that formula.....thanks

Answer 4

@timo86m is 36+- 0 over 8 correct?

Answer 5

looks right to me :)

Answer 6

but you can't have sqrt of 0

Answer 7

9/2 tho if you simplify :D

Answer 8

you can :P remember the discriminant the value under the sqr root sign

say if its 0 1 solutions
> 0 2 solutions
<0 no solutions

Answer 9

so is 9 over 2 the final answer

Answer 10

yes only 1 answer

Answer 11

ok thanks

Answer 12

http://www.wolframalpha.com/input/?i=4x%5E2-36x%2B81%3D0


See

Answer 13

LOL I love that sight