Respostas

2014-04-10T18:20:04-03:00
6x^2 - 8x + 1 + 9x^2 - 2x + 7 = 15x^2 - 10x + 8 \\ 9x^2 - 2x + 7 + 6x^2 - 8x + 1 = 15x^2 - 10x + 8 \\ 6x^2 - 8x + 1 + 9x^2 - 2x + 7 + 7x^3 + x^2 = 7x^3 - 16x^2 - 10x^2 + 8

e b) 15x² - 10x + 8
c) 7x³ -16x² + 8
Errata: c) 7x³ -16x² - 10x + 8

Errata: 7x^3 - 16x^2 - 10x + 8