Question

factorise a^4+4a^2+3​

Answer 1

Answer:

a^4+4a^2+3

=a^4+a^2+3a^2+3

=a^2{a^2+1}+3{a^2+1}

={a^2+1}{a^2+3}

Answer 2

Answer:

a^4+4a^2+3

⇒a^4+a^2+3a^2+3

⇒a^2{a^2+1}+3{a^2+1}

⇒⇒{a^2+1}{a^2+3}.

Step-by-step explanation: