Respuesta :
a
2
+
10
a
+
25
Rewrite
25
25
as
5
2
5
2
.
a
2
+
10
a
+
5
2
a
2
+
10
a
+
5
2
Check the middle term by multiplying
2
a
b
2
a
b
and compare this result with the middle term in the original expression.
2
a
b
=
2
⋅
a
⋅
5
Answer:
[tex]-3a^{3} +30a^{2} -75a[/tex]
Step-by-step explanation:
I'm not sure about the question mark so i thought it might have been an [tex]a^{2}[/tex].