Разложите на множители: P^4-16 X^4-81 Y^8-1 A^4-b^8
1) (p²-4)(p²+4)=(p-2)(p+2)(p²+4) 2) (x²-3²)(x²+3²)=(x-3)(x+3)(x²+9) 3) ((y²)³-1³)=(y²-1)(y^4-y²+1)=(y-1)(y+1)(y^4-y²+1) 4)(a²)²-(b^4)²=(a²-b^4)(a²+b^4)=(a-b²)(a+b²)(a²+b^4)