kam3864 kam3864 26-02-2019 Mathematics contestada Factor completely 4x^3 + 28x^2 + 7x + 49 A.) (x - 7)(4x^2 + 7) B.) (x - 7)(4x^2 - 7) C.) (x + 7)(4x^2 + 7) D.) (x + 7)(4x^2 - 7)