What value is added to both sides of the equation x2 − 4x = −2 in order to solve by completing the square? A) 4 B) 2 C) −2 D) −4

asked Oct 15, 2020 152k views

5 votes

What value is added to both sides of the equation x2 − 4x = −2 in order to solve by completing the square?

A) 4
B) 2
C) −2
D) −4

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6 votes

Answer:

x^2 - 4x = -2

x^2 - 4x + 4 = -2 + 4

(x - 2)^2 = 2

A) 4

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