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 ( 49+ )
Other Questions
IF YOU KNOW THAT 4 X 5 = 20, HOW CAN YOU USE THE COMMUTATIVE PROPERTY TO FIND 5 X 4 ?
Complete the sentences using a preposition
Why did the Greek historian Herodotus call Egypt "the gift of the Nile"? Choose all answers that are correct. A. The Nile provided water. B. The Nile was an abu
•the total amount paid for the initial deposit and 6 months of rent is the same at all three apartment complex, $5150 •the initial deposit for apartment C is $
Ok so, one yard (36 inch) is equal to two elevenths of a rod. How many inches are in a rod???? Plz I need help!!!!!
the speed of light is about 3x10^8 m/s what is the speed of light in kilometers per hour
Which sentence contains a progressive verb? A. The torn sleeve on my shirt will require several stitches. B. John has finished the first lap of the race. C. Eri
Which uses the correct verbs for formal speech or writing? a. Carl wished it was last year at this time so he could invite someone else to homecoming and have a
One number added to twice another number is 13. Four times the first number added to twice the other number is -2. What are the numbers?
A newborn response to the world is shaped by?