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3 years ago

Complete the square for 2x2 - 4x = 14.

Mathematics

1 answer:

koban [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Given

2x² - 4x = 14 ( divide through by 2 )

x² - 2x = 7

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = 7 + 1

(x - 1)² = 8 → B

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