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4p-2p+2g+3g+2pg=
2p+5g+2pg
2.(3p pangkat2+2g+5)-(p pangkat2-2g+5)=3p pangkat2+2g+5-p pangkat2+2g-5=3p pangkat2+p pangkat2+2g+2g+5-5=2p pangkat2+4g
3.(2a+3ab+c)+(a-2ab+2c)=
2a+3a+c+a-2ab+2c=
2a+a+3ab-2ab+c+2c=
3a+ab+3c
4.(4X pangkat2+5X-3)-(X pangkat2+10)=
4X pangkat2+5X-3-X pangkat2-10=
4X pangkat2-X pangkat2+5X-3-10=
3X pangkat2+5X-13