Ответы и объяснения

2013-04-12T12:10:05+04:00

Вариант 1.
1 (а-3)(а+3)
2. (0,8х-1)(0,8х+1).
3.(6с-9)(6с+9)
4.(4а-5b)(4a+5b)
5.(mn-2x)(mn+2x)
6.(7-c)(7+c)
7.a(a^2-1)=a(a-1)(a+1)
8.c(c^2-16)=c(c-4)(c+4)
9. 6(x-y)(x+y)
10. (2x-1-5)(2x-1+5)=(2x-6)(2x+4)

1.(5a-b)(25a^2+5ab+b^2)
2.(a^2+x)(a^4-a^2b+b^2)
3.(3a+2)(9a^2-3a+4)
4.(4x-1)(16x^2+4x+1)
5.(0.1-y)(0.01+0.1y+y^2)
6.x(x^3-y^3)=x(x-y)(x^2+xy+y^2)


1,(x+5)^2
2.(m+3n)^2
3.(5a-3)^2
4.(6m+n)^2
5.(10+8n)^2
6.(4a+5b)^2
7.(x^2+1)^2
8.(2x^2-3)^2
9.(0.3-m)^2