Question

Marvin was completing the square, and his work is shown below. Identify the line where he made his mistake. f(x) = 2x2 − 8x + 5 Line 1: f(x) = 2(x2 − 8x) + 5 Line 2: f(x) = 2(x2 − 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

Answer 1

Hey there!

I took the test, and I can confirm at A. Line 1 is the CORRECT answer

xXxGolferGirlxXx

Answer 2

line 1...he didn't factor his 2 out correctly...should be 2(x^2 - 4x)...