mirahope110 mirahope110 29-07-2021 Mathematics contestada 5. Which expression is a simplified form of (3x2 + 2x - 4) + (-7x2 + 6x - 2)? a 10x2 + 8x - 6 b. -4x2 + 8x - 2 C.-4x2 + 8x + 2 d. -4x2 + 8x - 6