Question

Efetue as multiplicações:

Answer 1

^--> elevado
(-x³ - x²- 2x +1)( -1/2x) ---> 1/2x^4 +1/2x³ +x² -1/2x

(2x+ 3)( 5x-1)  --> 10x² -2x + 15x - 3---> 10x² + 13x -3

(4x³ + 2x - 3)( 5x² +x -1) ---> 20x^5 + 4x^4 - 4x³ + 10 x³ +2x² - 2x - 15x² -3x +3--->
20x^5 + 4x^4 + 6x³ -13x² -5x +3

Answer 2

^--> elevado

(-x³ - x²- 2x +1)( -1/2x) ---> 1/2x^4 +1/2x³ +x² -1/2x

(2x+ 3)( 5x-1) --> 10x² -2x + 15x - 3---> 10x² + 13x -3

(4x³ + 2x - 3)( 5x² +x -1) ---> 20x^5 + 4x^4 - 4x³ + 10 x³ +2x² - 2x - 15x² -3x +3--->

20x^5 + 4x^4 + 6x³ -13x² -5x +3