Simplifica las siguientes expresiones:

5x2 + 3x2 – x3 + 2x3 + 10x4 – 5x4 =


300x + 20 + 5x + 10 -40x2 =



(5x2 + 2x5 + 10x5) (6x5 + 2x5 – 8x5) =


((4x^20)/(2x^5 )) ((100x^20)/(2〖5x〗^5 )) ((2x^20)/(2x^5 )) =