Ответ:
[tex]4a^2-4a+1-x^2=(2a-1-x)(2a-1+x)\\\\y^2-a^2-10a-25=(y-a-5)(y+a+5)\\\\1-x^2-8xy-16y^2=(1-x-4y)(1+x+4y)[/tex]
Объяснение:
[tex]4a^2-4a+1-x^2=(2a-1)^2-x^2=(2a-1-x)(2a-1+x)\\\\y^2-a^2-10a-25=y^2-(a^2+10a+25)=y^2-(a^2+5)^2=(y-a-5)(y+a+5)\\\\1-x^2-8xy-16y^2=1^2-(x^2+8xy+16y^2)=1^2-(x+4y)^2=(1-x-4y)(1+x+4y)[/tex]
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Answers & Comments
Ответ:
[tex]4a^2-4a+1-x^2=(2a-1-x)(2a-1+x)\\\\y^2-a^2-10a-25=(y-a-5)(y+a+5)\\\\1-x^2-8xy-16y^2=(1-x-4y)(1+x+4y)[/tex]
Объяснение:
[tex]4a^2-4a+1-x^2=(2a-1)^2-x^2=(2a-1-x)(2a-1+x)\\\\y^2-a^2-10a-25=y^2-(a^2+10a+25)=y^2-(a^2+5)^2=(y-a-5)(y+a+5)\\\\1-x^2-8xy-16y^2=1^2-(x^2+8xy+16y^2)=1^2-(x+4y)^2=(1-x-4y)(1+x+4y)[/tex]