F(x)=2x^2-2: x+3 при х=-1

Question

F(x)=2x^2-2: x+3 при х=-1

Answer 1

F(x)=(2x²-2)/(x+3), x=-1
F(-1)=(2.(-1)²-2)/(-1+3)=(2.1-2)/2=(2-2)/2=0/2=0
F(-1)=0
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Comments

2.1 - это 2*1

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Da, naprimer 3.4=12, 8.5=40 itd.