Question

factorise a square + 12 A + 27​

Answer 1

Answer:

a² +12a +27

p(-3)=-3² +12(-3)+27

=9-36+27

=-36+36

=0

(a+3) is divisible by p(x)

a+3 ÷ a²+12a+27

(when you will divide this the remainder remian zero )

quotient is a+9

so dividend = divisor × quotient+ remainder

=(a+3) (a+9)

are the factor of p(x)