3 years ago

What number must you add to complete the square? x2 - 18x= 29

Mathematics

1 answer:

algol [13]3 years ago

8 0

Answer:

Step-by-step explanation:

Given

x² - 18x = 29

To complete the square

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

x² + 2(- 9)x + (- 9)² = 29 + (- 9)²

x² + 2(- 9)x + 81 = 29 + 81

(x - 9)² = 110

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