How would you factor this?
a^2 + 12a + 36
a^2 + 12a + 36
Factors into two binomials:
 1st terms are factors of a^2.....a and a
 2nd terms, multiply to get 36 and add to get 12....6 and 6
= (a + 6)(a + 6)
or (a + 6)^2
© Algebra House
Algebra House 
