g(x)= 2x kuadrat - x maka g(x + 1 )

Materi : Fungsi



g(x) = 2x² - x
g(x + 1)
= 2(x + 1)² - (x + 1)
= 2(x² + 2x + 1) - x - 1
= 2x² + 4x + 2 - x - 1
= 2x² + 3x + 1

maka g(x+1)
= 2(x+1)^2-(x+1)
= 2(x^2+2x+1)-x-1
= 2x^2+4x+2-x-1
= 2x^2+3x+1

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