Jawabanmu

2014-08-26T20:03:47+07:00
A. 3x²+2x+x²-5x-1+6 = 9x+2x+2x-5x-1+6 = 8x+5
b.-2p³+4pq-2q²+3p³+12pq-3q² = -8p+27p+4pq+12pq-4q-9q = 19p+16pq-13q
c.x²+4x-2x²-4x-1 = 2x+4x-4x-1 = 2x-1
1 3 1