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Gilberto Calhoun
Mathematics
7 June, 18:06
What number must you add to complete the square?
x2 - 18x = 29
+4
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1
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Tessa Quinn
7 June, 18:31
0
81
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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