Respuestas

  • Usuario de Brainly
2012-05-07T00:06:56+02:00

x^{2}-100 = (x+10)(x-10)

-25x^{2}+4 = 4-25x^{2}=(2+5x)(2-5x)

9x^{2}-1 = (3x+1)(3x-1)

-81x^{2}+49 = 49-81x^{2}=(7+9x)(7-9x)

441x^{2}-25 = (21x+5)(21x-5)

-c^{2}+400 = 400-c^{2}= (20+c)(20-c)

-9y^{8}+121 = 121 -9y^{8}=(11+9y^{4})(11-9y^{4})

3600y^{4}-169 = (60y^{2}+13)(60y^{2}-13)

x^{6}-196 =(x^{3}+14)(x^{3}-14)