himansushriwastav25 himansushriwastav25 31-01-2021 Mathematics contestada XERCISE 6.4 (a)b) x2 - 1, x-1d) (x - 1)?, x2 – 3x + 2f) 2x2 + 5x + 2, 3x2 + 8x + 4, 2x2 + 3x - 2h) 2x - x - x, 4x - x, 8x + xi) a + b), a* + a²b2 + b4, a- a²b + ab?1b) (x - 1)(x - 2), (x - 2)(x - 31. (Ydl