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Lilit [14]
3 years ago
6

Dimitri is solving the equation x^2 - 10x = 21. Which value must be added to both sides of the equation to make the left side a

Mathematics
2 answers:
expeople1 [14]3 years ago
8 0

Answer:

25

Step-by-step explanation:

juin [17]3 years ago
3 0

Answer:

25

Step-by-step explanation:

Given

x² - 10x = 21

To complete the square on the left side

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 5)x + 25 = 21 + 25, that is

(x - 5)² = 46

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Answer:

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so the domain is

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2 years ago
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