← Calcul algebric. Rapoarte algebrice
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Mediu
Formule de calcul prescurtat
Dezvolta:
(
x
+
3
)
2
−
(
x
−
3
)
2
(x + 3)^2 - (x - 3)^2
(
x
+
3
)
2
−
(
x
−
3
)
2
.
2
x
2
+
18
2x^2 + 18
2
x
2
+
18
0
0
0
6
x
6x
6
x
12
x
12x
12
x
Verifică