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-a -9a^
--------------+
2a -14a^
b. (-5. 2p - (-5). -3) + 7p
-10p+7p - 15
-3p -15
yang soal no 3 sama 4 ga keliatan -_- semoga membantu :3
=(3a-5a^)+(-a-9a^)
=3a-5a^-a-9a^
=3a-a-5a^-9a^
=2a-4a^.
b)-5(2p-3)+7p
=-10p+15+7p
=-10p+7p+15
=-3p+15.
c)8a^-6a-5 dan 4a^+7a+9
=(8a^-6a-5)+(4a^+7a+9)
=8a^-6a-5+4a^+7a+9
=8a^+4a^-6a+7a-5+9
=12a^-13a-14.
d)-x^+6xy dan 5x^-5xy
=(-x^+6xy)+(5x^-5xy)
=-x^+6xy+5x^-5xy
=-x^+5x^+6xy-5xy
=-4x^+xy.
Tandai sebagai yang terbaik yaaaa!