Разложите на множители ВОТ ФОРМУЛА — a^2-b^2=(a-b)

9x^2-4=3 х-2) (3 х +2) 4a^2-25=(2 а-5) (2 а +5) 16-49y^2=(4-7 у) (4+7 у) 9a^2-4b^2=(3 а-2b) (3 а +2b) 16m^2-9n^2=(4m-3n) (4m+3n) 25x^2-y^2=(5x-y) (5x+y) 4x^2-1=(2x-1) (2x+1) 1-36a^2=(1-6a) (1+6a) _______________________________x^2y^2-z^2=(x-y-z) (x+y+z) a^2b^2-16=(a-b-4) (a+b+4) 9-m^2n^2=(3-m-n) (3+m+n) b^2c^2-1=(b-c-1) (b+c+1) y^4-x^2=(y^2-x) (y^2+x) y^6-9=(y^3-3) (y^2+3) x^10-25=(y^5-5) (y^2+5) 9-b^4=(3-b^2) (3+b^2) _________________________ (1+3m) (1-3m)=1-9m^2 (2x-1) (2x+1)=4x^2-1 (a-3b) (3b+a)=a^2-9b^2 (4x+3y) (3y-4x)=16x^2-9y^2 (5b-10c) (5b+10c)=25b^2-100c^2