The problem states that $F(x+2) = 2x^2 + 7x - 5$. We need to find the value of $F(-1)$.

AlgebraFunctionsFunctional EquationsSubstitution
2025/5/20

1. Problem Description

The problem states that F(x+2)=2x2+7x5F(x+2) = 2x^2 + 7x - 5. We need to find the value of F(1)F(-1).

2. Solution Steps

First, we need to find the value of xx for which x+2=1x+2 = -1.
x+2=1x+2 = -1
x=12x = -1 - 2
x=3x = -3
Now that we have x=3x = -3, we can substitute this value into the expression for F(x+2)F(x+2) to find F(1)F(-1).
F(1)=F((3)+2)=2(3)2+7(3)5F(-1) = F((-3)+2) = 2(-3)^2 + 7(-3) - 5
F(1)=2(9)215F(-1) = 2(9) - 21 - 5
F(1)=18215F(-1) = 18 - 21 - 5
F(1)=35F(-1) = -3 - 5
F(1)=8F(-1) = -8

3. Final Answer

The final answer is -8.

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