Joseph101
Joseph101
13-04-2015
Mathematics
Answered
x^2+8x+c
Perfect square Trinomial
Answer :
belcatya
belcatya
13-04-2015
we know
square of the sum
formula
(a+b)²=a²+2ab+b²
so we need
x²+8x+c=(x²+2*4*x+4²)-16+c=(x+4)²+c-16,
so for full square we need c-16=0
c=16
Answer: c=16
Answer Link
VIEW ALL ANSWERS ( 65+ )
Other Questions
In scientific notation, what is the sum of 2.3 x 10^-3 and 5.4 x 10^-4
In scientific notation, what is the sum of 2.3 x 10^-3 and 5.4 x 10^-4
solid figure with a pentagon for a base and triangular faces
if cos(2x-1)=sin(3x+6) the what is the value of x?
the base of this solid figure has 4 equal sides and the faces are triangels
solid figure with a pentagon for a base and triangular faces
solid figure with a pentagon for a base and triangular faces
In scientific notation, what is the sum of 2.3 x 10^-3 and 5.4 x 10^-4
In scientific notation, what is the sum of 2.3 x 10^-3 and 5.4 x 10^-4
if cos(2x-1)=sin(3x+6) the what is the value of x?
