Question

!СРОЧНО! даю 100 баллов

Answer 1

1) 3m² - 12n² = 3(m² - 4n²)

2) x²y² - x²z² = x²(y² - z²)

3) 3m² - 6m + 3 = 3(m² - 2m + 1) = 3(m - 1)²

4) (a² + 1)² - 4a² = (a² + 1 + 2a)(a² + 1 - 2a) = (a² + 2a + 1)(a² - 2a + 1)

Answer 2

$1)\ 3m^2-12n^2=3(m^2-4n^2)=3(m-n)(m+n)\\\\2) \ x^2y^2-x^2z^2=x^2(y^2-z^2)=x^2(y-z)(y+z)\\\\3)\ 3m^2-6m+3=3(m^2-2m+1)=3(m-1)^2\\\\4)\ (a^2+1)^2-4a^2=(a^2+1-2a)(a^2+1+2a)=(a-1)^2(a+1)^2$