mathematics
posted by prince
what value of k makes the given expression a perfect square?M square 8m+k

Damon
m^2  8 m + k
(mx)(mx) = m^2 2 x m + x^2
so
2 x = 8
x = 4
x^2 = 16 = k
so
m^2  8 m + 16
in general to complete the square
1 x^2 + b x + c
if that is to be a perfect square
c = (b/2)^2
Respond to this Question
Similar Questions

math,help
Is this trinomial a perfect square x^26x+9 if the trinomial starts with x^2 and 1/2 of the middle term coefficient squared equals the last term, then it is a perfect square. tell me what you found. i thought it was not a perfect square. … 
Algebra
what is a perfect square number i know 9, 25 and 100, but what else if you multiply a perfect square by a perfect square, is the answer always a perfect square 
math
What value oc C makes the expression a perfect square? 
Math
Which numbers are perfect squares? A) 64 b)900 c)120 d)1000 e)100 F) 10 000 How do u know each number is a perfect square? 
Algebra 2
Find the value of c that makes the expression a perfect square trinomial. Then write the expression as the square of a binomial. I didn't really understand what that meant. x^223x+c x^2(2/7)x+c 
Algebra
Rationalize each expression by building perfect nth root factors for each denominator. Assume all variables represent positive quantities. I don’t understand how to compute these. Also I don’t have the square root sign so I typed … 
College Algebra
I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root … 
College Algebra help please
I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root … 
College Algebra
I need some help with a handful of questions. I need to see the steps on how to get to the final answers. I would also appreciate if you can explain how you got to those steps. Rationalize each expression by building perfect nth root … 
maths
What value of k makes the expression P^2  18P + K a perfect square?