sanrio10 sanrio10 31-05-2023 Mathematics contestada Simplify the following expression. 3x^4 +2x³-5x² + 4x² +6x-2x-3x +7x -3x³ OA. 7x5 +6x-x³ - x² + 4x OB. 7x5-x3x² + 4x OC. 10x¹+x³+x² + 4x OD. 7x^5-6x +5x³ - x² + 4x