fungsi g(x)=4x²+57x-15 maka nilai g(-1)+g(2)

g(x) = 4x² + 57x - 15

g(-1) = 4(-1)² + 57(-1) - 15
g(-1) = 4 - 57 - 15
g(-1) = -68

g(2) = 4(2)² + 57(2) - 15
g(2) = 4(4) + 57(2) - 15
g(2) = 16 + 114 - 15
g(2) = 115

g(-1) + g(2)
-68 + 115
47

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