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a . -3 + b = -15 a . 3 + b = 9
-3a + b = -15 3a + b = 9
-3a + b = -15
3a + b= 9 Eliminasi kedua persamaan tersebut jadi
-6a = -24
a = 4
Jika a = 4 maka -3a + b = -15
-3 . 4 + b = -15
-12 + b = -15
b = -3
f(-2) - f(2) =
4 . -2 - 3 -(4 . 2 - 3) =
-8 -3 - 5 =
-16 =