Question

Rewrite the function f(x)=2(x-1)^2-1 in the form f(x)=ax^2+bx+c

Answer 1

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`f(x) = 2 ({x - 1})^(2) - 1`

`f(x) = 2( {x}^(2) - 2x + 1) - 1`

`f(x) = 2 {x}^(2) - 4x + 2 - 1`

`f(x) = 2 {x}^(2) - 4x + 1`

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Answer 2

2x^2-4x+1

Explanation:

2(x-1)^2-1

2(x^2-2x+1)

2x^2-4x+2-1

2x^2-4x+1