mrfishyyyy
29.11.2019 •
Mathematics
What values make an equivalent number sentence after completing the square?
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Ответ:
Divide the middle term by 2, and square the number.
x² + 11x + (11/2)² - (11/2)² = 3
x² + 11x + (11/2)² = 3 + (11/2)²
x² + 11x + 121/4 = 3 +121/4
x² + 11x + 121/4 = 133/4
Ответ:
C. -1.7
Step-by-step explanation: