Marvin was completing the square, and his work is shown below. Identify the line where he made his mistake.
f(x) = 2x^2 − 8x + 5
Line 1: f(x) = 2(x^2 − 8x) + 5
Line 2: f(x) = 2(x^2 − 8x + 16) + 5 − 32
Line 3: f(x) = 2(x − 4)^2 − 27
Line 1
Line 2
Line 3
He did not make any mistakes
I think line 2, amirite?

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yes, he didn't factor the 2 out correctly

f(x) =2x^2-16x+5 this equation i think the answer is line 3

oh wait, sorry. That factoring mistake is on line 1, not 2.

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