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charle [14.2K]
3 years ago
6

Rút gọn : (x+2)^2+(3-x)^2= ?

Mathematics
1 answer:
Yanka [14]3 years ago
6 0

Step-by-step explanation:

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

=2x^2-4x+13

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