How do you factor #a^3 + 3a^2  a  3#?
1 Answer
Answer:
a=1, 1 and 3
see below
Explanation:
we have
first find a factor of ur expression
in this case
lets take a=1 (subs in expression)
now lets assume a=x
now
expand it
collect the coefficients of
now



now compare the coefficients of this and original expression
we get a=1
c=3
c=3
ba=3
b1=3
b=3+1
b=4
now
now simplify the quadratic expression
we can say that 1, 1 and 3 are all factors of