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a= -1
b= -3
c=9
-2a²+3b-6c
-2*(-1²)+3*(-3)-6*9
-2+(-9)-54
-63
6.)
a= -2
b=3
4a²b-5ab²
4*(-2²)*3-5*(-2)*3²
48-(-90)
138
cek lagi,
semoga dpat membntu.