caltho5655 caltho5655 26-01-2021 Mathematics contestada 4. Simplify the expression. (4n4 - 8n + 4) - (8n2 + 4n4 + 1) a) -8n2 - 8n +3 b) -7n2.8n + 3 c) -6n2 - 8n + 3 d) -7n2.4n +3