Question

a3 = 10a2 – 25a

Answer 1

do we use foil on the problume

Answer 2

LOL
explaining

Answer 3

\[a^3-10a^2+25a=0 \]
now take a common
\[a(a^2-10a+25)\]
its in the form of (a-b)^2= a^2-2ab+b^2
so
\[a(a-5)^2\]
so
a=0 or a =5