Mathematics, 13.03.2020 05:06 lizzy6629
Rodrigo needs to solve the equation x2 – 4x – 18 = 0 by completing the square. Which pair of steps is the most efficient way to begin?
A. x2 – 4x = 18
x2 – 4x + 2 = 18 + 2
B. x2 – 4x = 18
x2 – 4x + 4 = 18 + 4
C. x2 – 4x = 18
x2 – 4x + 81 = 18 + 81
D. x2 – 4x = 18
x2 – 4x + 16 = 18 + 16
Answers: 1
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Rodrigo needs to solve the equation x2 – 4x – 18 = 0 by completing the square. Which pair of steps i...
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