Jika f(x) = -x + 3, maka F(x2) + (f(x))2 - 2f(x) = ....
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Jika f(x) = -x + 3, maka F(x2) + (f(x))2 - 2f(x) = ....
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1. Jawaban Anonyme
jawab
f(x) = - x + 5
f(x²) + (f(x))² - 2 f(x) =
= - x² + 5 + (- x+ 5)² - 2 (-x + 5)
= - x² + 5 + (x² -10x + 25) + 2x - 10
= - x² + 5 + x -10x + 25 + 2x -10
= - x² + x -10x + 2x + 5 + 25 - 10
= -x² - 7x + 20