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g(2)=2q+r=-7
g(-5)=-5q+r=7
------------------- -
7q = -14
q = -2
2q+r=-7
2.-2+r=-7
r =-7+4
r=-3
g(4)=qx+r
-2.4+(-3)
-8+(-3)=-11
langkah pertamamenentukan q dan r
g(2)= -7 => 2q+r=-7
g(-5)=7 => -5q+r=7 _ dikurangi menjadi
7q = -14
q = -14/7
q = -2
2q + r = -7
2(-2)+r= -7
-4 + r = -7
r = -7 +4
r = -3
langkah keduan tentukan hasil g(4)
g(4) = qu +r
= -2(4) -3
= -8 -3
= -11