dana jest funkcja F(x)=-x²-3x+2
oblicz: f(2x) oraz f(3x+1)
f(2x) = -(2x)^2 - 3(2x) + 2 =4x^2 -6x+2
f(3x+1) = (3x+1)^2 -3(3x+1) + 2 = 9x^2 + 6x + 1 -9x - 3 + 2 = 9x^2 -3x
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f(2x) = -(2x)^2 - 3(2x) + 2 =4x^2 -6x+2
f(3x+1) = (3x+1)^2 -3(3x+1) + 2 = 9x^2 + 6x + 1 -9x - 3 + 2 = 9x^2 -3x