Question

What value of b makes the polynomial below a perfect square? x^2 + bx + 64
b =
a.16
b.8
c.4
d.32

Answer 1

64 is the square of 8, and two times 8 is 16

Answer 2

so if you put
\[x^2+16x+64\] you will get
\[(x+8)^2\]

Answer 3

-16 also works

Answer 4

ans is a ...=16