Question

Factroize,a^4-b^4-4a^2+2b^2+3​

Answer 1

Step-by-step explanation:a^4-b^4+2b^2-1

=a^4-b^4+2b

=(a^2+b^2) (a^2-b^2) +2b

=(a^2+b^2) (a+b) (a-b) +2b

=(a^2+b^2+2b) {(a+b) (a-b) +2b}

=(a^2+b^2 +2b) (a^2-b^2 +2b) ans