SOLUTION: How do I complete the square for m(x)=-x^2+6x-4? I tried dividing 6x by 2 and factored out -1 from x^2+6x. But how do you get the other number?

Algebra.Com
Question 160236This question is from textbook College Mathematics
: How do I complete the square for m(x)=-x^2+6x-4?
I tried dividing 6x by 2 and factored out -1 from x^2+6x. But how do you get the other number?
This question is from textbook College Mathematics

Answer by checkley77(12844)   (Show Source): You can put this solution on YOUR website!
m(x)=-x^2+6x-4?
-x^2+6x=4
x^2-6x=-4
x^2-6x(+9)=-4(+9)
(x-3)(x-3)=5
x-3=sqrt5
x=3+sqrt5
x=3+2.236
x=5.236 answer.

RELATED QUESTIONS

How do I complete the square?... (answered by dabanfield)
i need to complete the square to write the equation so that the right side is in the... (answered by venugopalramana)
I am having problems solving this equation {{{x^3-6x^2-15x-8=0}}} This is what I have... (answered by Earlsdon)
how do you complete the square of... (answered by stanbon)
how do i solve... (answered by jim_thompson5910)
complete the square and find the vertex from quadratic function.... (answered by Fombitz)
Here's the question: Sorry for it being so long Solve each system by the addition... (answered by lotanez)
5. How do I complete this using factoring? Thank you. x^2 + 6x +... (answered by jim_thompson5910)
If f(x) = 6x + 7 and g(x) = x² - 4, find each value. 1.) f(-3) 2.) f(m) 3.) f(r-2) (answered by Edwin McCravy)