9.2 In Class Assignment

University:
California State University, Northridge
Course:
BIOL 380 | Cell Biology
Academic year:

2021
Views:

0

Pages:

1
Author:

Leonardo Carrizales

Algebra 1 9.2 In Class Assignment Name: Leonardo Carrizales ID: 1 Date: 3/5/25 Period: 6/7 Instructions: Solve each equation by completing the square. If necessary, round your answer to the nearest thousandth place. Problem 1: n² + 6n - 22 = 0 n² + 6n = 22 (b/2)² = 3² or 9 n² + 6n + 9 = (22 + 9) = 31 (n + 3)² = 31 n + 3 = √31 n = -3 √31 √31 = 5.568 n = -3 + 5.568 n = -3 - 5.568 [Boxed] n = 2.568 n = -8.568 [End Box] Problem 2: b² - 4b - 13 = 8 b² - 4b = 21 (-4/2)² = (-2)² or 4 b² - 4b + 4 = 21 + 4 b² - 4b + 4 = 25 (b - 2)² = 25 b - 2 = √25 b - 2 = 5 + 2 = 7 [Boxed] n = 7 n = -3 [End Box]

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