Question

сократите дробь
1) x^2-2x+1/x^2-1
2) 3a^2-6ab+3b^2/6a^2-6b^2
3) 5m^2+10mn+5n^2/15m^2-15n^2

Answer 1

1) x-1/x+1
2) a+b/2(a-b)
3) m+n/3(m-n)

Answer 2

А какое решение?

Answer 3

1) (x-1)(x-1)/(x+1)(x-1)=x-1/x+1

Answer 4

2)3(a^2-2ab+b^2)/6(a^2-b^2)=a^2-2ab+b^2/2(a^2-b^2)=(a+b)(a+b)/2(a+b)(a-b)=a+b/2(a-b)

Answer 5

3)5(m^2+2mn+n^2)/15(m^2-n^2)=(m+n)(m+n)/3(m+n)(m-n)=m+n/3(m-n)