Ответ:

25-x^2=5^2-x^2=(5-x)(5+x)

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

b^2-(49/64)=(1/64)(8b-7)(8b+7)

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

p^2-49=(p-7)(p+7)

x^2-1=(x-1)(x+1)

m^2-0,25=0,25(2m-1)(2m+1)

25x^2-y^2=(5x-y)(5x+y)

1-36a^2=(1-6a)(1+6a)

0,09x^2-y^2=(0,3x-y)(0,3x+y)

y^6-9=(y^3-3)(y^3+3)

100x^4-9y^10=(10x^2-3y^5)(10x^2+3y^5)

0,01m^2-25n^8=(0,1m-5n^4)(0,1m+5n^4)

0,16-4b^2=0,16(1-5b)(1+5b)

x^10-25=(x^5-5)(x^5+5)

0,64-49k^8=0,04(4-34k^4)(4+35k^4)

9a^2b^2-64x^4=(3ab-8x^2)(3ab+8x^2)

36a^4-b^6=(6a^2-b^3)(6a^2+b^3)

0,04a^6-0,25b^4=0,01(2a^3-5b^2)(2a^3+5b^2)

(25/16)a^2-(7/4)c^6=0,0625(25a^2-28c^6)

2,25m^6-(16/9)x^8=(1/36)(9m^3-8x^4)(9m^3+8x^4)

0,09x^6-0,49y^2=0,01(3x^3-7y)(3x^3+7y)

x^10-y^8=(x^5-y^4)(x^5+y^4)

0,04x^4-0,25y^2=0,01(2x^2-5y)(2x^2+5y)

(4/9)m^2-(9/16)n^4=(1/144)(8m-9n^2)(8m+9n^2)

1,69y^14-1,21=0,01(13y^7-11)(13y^7+11)

121m^8n^8-9=(11m^4n^4-3)(11m^4n^4+3)