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Nuetrik [128]
3 years ago
9

Dimitri is solving the equation x2 – 10x = 21. Which value must be added to both sides of the equation to make the left side a p

erfect-square trinomial?
0
4
25
100
Mathematics
2 answers:
Tresset [83]3 years ago
8 0

Answer:

it's 25, just did it

Step-by-step explanation:

1 /2  o f  ( − 10 ) =  − 5 ,  ( − 5 )^ 2  =  25

Delicious77 [7]3 years ago
4 0

Answer:

C. 25

Step-by-step explanation:

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