Tolong dijawab ya, pengen dikumpulin besok...klo bisa pakai caranya
AngelinaKomala
A. -2x-9-7x+15y B. 8y-8x-11 C. 6x²-3xy-7y² Maaf ya kalau salah
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Syarmila11
A. 5x-9-7x+15y 5x-7x+15y-9 = -2x+15y-9 b. 5x-3y+7-5y-3x-4 5x-3x-3y-5y+7-4 = 2x-8y+3 c. -x2-6xy+3y2-5x2-9xy-4y2 -x2-5x2-6xy-9xy+3y2-4y2 =-6x2-15xy-1y2
B. 8y-8x-11
C. 6x²-3xy-7y²
Maaf ya kalau salah
5x-7x+15y-9
= -2x+15y-9
b. 5x-3y+7-5y-3x-4
5x-3x-3y-5y+7-4
= 2x-8y+3
c. -x2-6xy+3y2-5x2-9xy-4y2
-x2-5x2-6xy-9xy+3y2-4y2
=-6x2-15xy-1y2