Question

if x^2 + 8x + k is a perfect square then the value of k is​

Answer 1

Answer:

k = 16

Step-by-step explanation:

If the given equation has perfect square

then, b^(2) - 4ac = 0

8^(2) - 4(1)(k) = 0

64 - 4k = 0

4k = 64

k = 16

Answer 2

Answer:

k=16

Step-by-step explanation:

x²+8x+k

=(x+4)²-16+k

since it is  a perfect square

-16+k=0

k=16