Solve. x2 = 6x – 3

Question

Solve. x2 = 6x – 3

anonymous · Answer

It looks like a quadratic equation, so move everything to one side using inverse operations and factor.

anonymous · Answer

you probably want to start with 
$$x^2-6x=-3$$ and then complete the square
otherwise start with 
$$x^2-6x+3=0$$ and use the quadratic formula
because $6$ is even, completing the square is probably easiest
do you know how to do that?

anonymous · Answer

Or complete the square.....

wolf1728 · Answer

if you use the quadratic formula then
a=1  
b= -6  
c= 3

anonymous · Answer

you need to get x by its self so minus it from both sides and you get -4x=-3 and divide both sides to get x by itsself
so you answer is x=1

anonymous · Answer

hope i helped:)

anonymous · Answer

actually 1 is not the answer

anonymous · Answer

oh wait yeah sorry i messed up

anonymous · Answer

if you start with 
$$x^2-6x=-3$$ then take half of 6, which is 3, square it to get 9 and then write 
$$(x-3)^2=-3+9=6$$
take the square root, don't forget the $\pm$ and get 
$$x-3=\pm\sqrt6$$ then add 3 to both sides and you are done

anonymous · Answer

I had gotten stuck on this part
x^2 - 6x +3 = 0

wolf1728 · Answer

Quadratic formula is:
x = [-b +-sqroot(b² - 4*a*c)] / 2a

anonymous · Answer

I got x = 10.9 or x = -1.1
is it wrong?

anonymous · Answer

$$x=3\pm\sqrt6$$ is the correct answer

anonymous · Answer

yeah satellite73 is correct I messed up

anonymous · Answer

@jbarreto17 Do not estimate the square root unless the question specifically asks you to.