Jawabanmu

Jawaban paling cerdas!
2014-08-21T15:12:46+07:00
1. 3p+q+(-2p-5q+7)
= 3p + q -2p -5q + 7
= p - 4q + 7
2. 3x²+2x-1+x²+5x+6
= 4x² + 7x -5
3. a² + 2ab - 3b² -7a² -5ab
= -6a² -3ab -3b²
4. x² - x - 6 + 3x² - xy
= 4x² - xy - x -6
5. (2x+5)-(x-3)
= 2x + 5 - x + 3
= x + 8
6. (x²+4x-1)-(2x²+4x)
= x² + 4x - 1 -2x² -4x
= -x² -1
7. (y²-3)-(4y²+5y+6)
= y² - 3 - 4y² -5y -6
= -3y² - 5y - 9
8. (5a-6+ab)-(a+2ab-1)
= 5a - 6 + ab - a - 2ab +1
= 4a -ab - 5
1 5 1