Ответ:
1.
а)x^2+8x+16
б)y^2-10xy+25x^2
в)9a^2-4
г)c^2-4b^2
2.
а)(x-9)(x+9)
б)(y-2)^2
3.
c^2+16c+36-(c^2+12c)=c^2+16c+36-c^2-12c= 4c+36
4.
а)x^2+14x+49-x^2+16=65
14x=65-49-16
14x=0
x=0
б)64y^2-49/64=0
64y^2-49=0
64y^2=49
y^2=49/64
y=±7/8
5.
а)(4a^2+b^2)(4a^2-b^2)=16a^4-b^4
б)2m^2-8n^2/2=m^2-4n^2
6.
а)(6x^2y-13c^2)6x^2y+13c^2)
б)4x
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Answers & Comments
Ответ:
1.
а)x^2+8x+16
б)y^2-10xy+25x^2
в)9a^2-4
г)c^2-4b^2
2.
а)(x-9)(x+9)
б)(y-2)^2
3.
c^2+16c+36-(c^2+12c)=c^2+16c+36-c^2-12c= 4c+36
4.
а)x^2+14x+49-x^2+16=65
14x=65-49-16
14x=0
x=0
б)64y^2-49/64=0
64y^2-49=0
64y^2=49
y^2=49/64
y=±7/8
5.
а)(4a^2+b^2)(4a^2-b^2)=16a^4-b^4
б)2m^2-8n^2/2=m^2-4n^2
6.
а)(6x^2y-13c^2)6x^2y+13c^2)
б)4x