Объяснение:
5) 3x^2 – 4x + 1=3x^2 – 3x – x + 1=3x(x–1)–(x–1)=(x–1)(3x–1)
6) a^2b+ab^2–3ab–5=ab(a+b)–3ab–5=3ab–3ab–5=–5
Объяснение:
5) 3x^2 – 4x + 1=3x^2 – 3x – x + 1=3x(x–1)–(x–1)=(x–1)(3x–1)
6) a^2b+ab^2–3ab–5=ab(a+b)–3ab–5=3ab–3ab–5=–5