прошу помогите с алгеброй​

Ответ:

d2-16=(d-4)(d+4)

25n²-m²=(5n-m)(5n+m)

x²y^4-16=(xy²-4)(xy²+4)

4a^6-9a²b²=(2a³-3ab)(2a³+3ab)

81-x^6=(9-x³)(9+x³)

49x²y²-36a^8=(7xy-6a^4)(7xy+6a^4)

(2d-1)²-36=(2d-1-6)(2d-1+6)=(2d-7)(2d+5)

49-(x-y)²=(7-x+y)(7+x-y)

64x²-(x-1)²=(8x-x+1)(8x+x-1)=(7x+1)(9x-1)

(x+y)²-4=(x+y-2)(x+y+2)

(3x-2)²-(x+1)²=(3x-2-x-1)(3x-2+x+1)=(2x-3)(4x-1)

269²-169²=(269-169)(269+169)=100•438=43800