wyznacz wartość funkcji f(x)=-x^2-4x+1 dla x=3√2-2
f(x)=-x^2-4x+1 dla x=3√2-2
y=(3\sqrt{2}-2)^2-4*(3\sqrt{2}-2)+1
y=9*2-4-12\sqrt{2}+8+1
y=18-4-12\sqrt{2}+9
y=14+9-12\sqrt{2}
y=23-12\sqrt{2}
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f(x)=-x^2-4x+1 dla x=3√2-2
y=(3\sqrt{2}-2)^2-4*(3\sqrt{2}-2)+1
y=9*2-4-12\sqrt{2}+8+1
y=18-4-12\sqrt{2}+9
y=14+9-12\sqrt{2}
y=23-12\sqrt{2}