Fill in the blank with a number to make the expression a perfect square.
2
V
8v
2
+
x 5
?

Answer:
16
Step-by-step explanation:
Substituting 16 will make the expression valid and correct since the square of -4 is 16 and the addition of it is -8.
[tex]v^2-8v+16=(v-4)^2[/tex]