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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

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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