А) 4x² - 4 = 4(x² - 1) = 4(x + 1)(x - 1)
Б) 5t² - 20st + 20s² = 5(t² - 4st + 4s²) = 5(t - 2s)(t - 2s)
В) c - 27cd³ = c(1 - 27d³) = c(1 - 3d)(1 + 3d)(1 + 9d²)
Г) vu³ + vw³ = v(u³ + w³) = v(u + w)(u² - uw + w²)
А) 4x² - 4 = 4(x² - 1) = 4(x + 1)(x - 1)
Б) 5t² - 20st + 20s² = 5(t² - 4st + 4s²) = 5(t - 2s)(t - 2s)
В) c - 27cd³ = c(1 - 27d³) = c(1 - 3d)(1 + 3d)(1 + 9d²)
Г) vu³ + vw³ = v(u³ + w³) = v(u + w)(u² - uw + w²)