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f(x) = ax^7 + bx - 5
jika f(x) dibagi (x - 2014) bersisa 3, artinya :
f(2014) = 3
a(2014)^7 + b(2014) - 5 = 3
a(2014)^7 + b(2014) = 8
oleh karena itu f(x) dibagi oleh (x+2014) akan bersisa :
f(-2014) = a(-2014)^7 + b(-2014) - 5 = -a(2014)^7 - b(2014) - 5
= -(a(2014)^7 + b(2014)) - 5 = -8 - 5 = -13
jadi, sisanya adalah -13
Subtitusikan x = 2014
f(x) = ax^7 + bx - 5
f(2014) = a(2014)^7 + b(2014) - 5
3 = a(2014)^7 + 2014b - 5
3 + 5 = a(2014)^7 + 2014b
8 = a(2014)^7 + 2014b
Sekarang diketahui bahwa a(2014)^7 + 2014b = 8
x = -2014
Subtitusikan x = -2014
f(x) = ax^7 + bx - 5
f(-2014) = a(-2014)^7 + b(-2014) - 5
f(-2014) = -a(2014)^7 - 2014b - 5
f(-2014) = -(a(2014^7 + 2014b) - 5
f(-2014) = -8 - 5
f(-2014) = -13
Semoga bermanfaat.