liltray321 liltray321
  • 01-05-2020
  • Mathematics
contestada

-3a(a? – 10a + 25) =

Respuesta :

kylannedwards
kylannedwards kylannedwards
  • 01-05-2020

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 Link
lexi5272 lexi5272
  • 01-05-2020

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].

Answer Link

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