haonheintran155
haonheintran155
28-07-2021
Mathematics
contestada
rút gọn :
(x+2)^2+(3-x)^2= ?
Respuesta :
dothiquynhanhk18dpt
dothiquynhanhk18dpt
28-07-2021
Step-by-step explanation:
=x^2+2x+4+9-6x+x^2
=2x^2-4x+13
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