Which equation has the same solution as x2 + 6x – 20 = -10? O (x – 3)2 = 19 O (x – 3)² = 1 - O (æ + 3)² = 1 O (x + 3)² = 19
Which equation has the same solution as x2 + 6x – 20 = -10? O (x – 3)2 = 19 O (x – 3)² = 1 - O (æ + 3)² = 1 O (x + 3)² = 19
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Which equation has the same solution as
x2 + 6x
20 = –10?
O (a – 3)2 = 19
O (27 – 3)2 = 1
O (x + 3)2 = 1
(x + 3)2 = 19
Expert Solution
Step 1
x² + 6x - 20 = -10
So, x² + 6x = 20 - 10
So, x² + 6x = 10
So, (x² + 2•x•3 + 3²) = 10 + 3²
So, (x + 3)² = 19
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