Question

Разложите на множители х^4y^2-(a^2-b^2)^2. m^6n^2-(m-n)^2. 1-(a^2+b^2)^2.

Answer 1

х^4y^2-(a^2-b^2)^2=(x^2y-a^2+b^2)(x^2y+a^2-b^2)
m^6n^2-(m-n)^2=(m^3n-m+n)(m^3n+m-n)
1-(a^2+b^2)^2=(1-a^2-b^2)(1+a^2+b^2)