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Rút gọn : (x+2)^2+(3-x)^2= ?
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4 votes
Rút gọn :
(x+2)^2+(3-x)^2= ?

User Gaylord
by
7.7k points

1 Answer

2 votes

Explanation:

=x^2+2x+4+9-6x+x^2

=2x^2-4x+13

User YWE
by
7.7k points
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