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B =
C =
A+B+C = -1+ (-1) + 1
= -2 + 1
= -1
2. y =
y(2x+3)=x-1
2xy + 3y = x-1
2xy - x = -1 - 3y
x(2y-1) = -1 - 3y
x = atau
=
3. misal a = x-2
maka pers itu menjadi S= +8+24+32 a + 16
ingat rumus penjabaran = +4+6+4m+
sehingga m=a dan n=2
S= subtitusikan kembali a = x-2
=
=