13
practice testMultiple Choice

Practice Test

Question 13 • Algebra I

Fiona is completing the square to solve the polynomial equation. x squared minus 4 x plus 1 is equal to 0 What should be her first step?

Answer
A
isolating the second term, negative 4 x
B
adding 4 to both sides of the equation
C
isolating the constant 1
D
adding 1 to both sides of the equation

Explanation

To complete the square, first move the constant term away from the terms containing x. Subtract 1 from both sides of x² − 4x + 1 = 0, giving x² − 4x = −1. So the first step is isolating the constant 1.

AI-written and checked against the verified answer.

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