Jawabanmu

2014-09-03T19:39:48+07:00
A. p²+3 + (-p²+3) = p²+3 - p²+3 = 6
B. 4y²-y+8 + (8y²-y-4) = 4y² - y+8 + 8y² - y - 4 = 12y² - 2y+4