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10.10.2020 •
Mathematics
Complete the square: x2 + 8x + 6 = 0
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Ответ:
x = -4 ± √10
Step-by-step explanation:
Step 1: Write quadratic
x² + 8x + 6 = 0
Step 2: Solve for x
Subtract 6 on both sides: x² + 8x = -6Complete the Square: x² + 8x + 16 = -6 + 16Complete the Square: (x + 4)² = 10Square root both sides: x + 4 = ±√10Subtract 4 on both sides: x = -4 ± √10Ответ:
b. The interquartile range is the average value of a data set.