a) x2 +
2xy + y2 =
b) a2 + 2ax + x2 = c) b2 + by + y2 = d) s2 + 2st + t2 = e) u2 + 2uv + v2 = f) a2 + 2ac + c2 = g) a2 + 2ad + d2 = h) a2 + 2af + f2 = i) b2 + 4bc + c2 = j) d2 + 2dc + c2 = |
(x
+ y )2
(a + x )2 geht nicht (s + t )2 (u + v )2 (a + c )2 (a + d)2 (a + f)2 geht nicht (d + c )2 |
a) 4a2 +
6ac + 9c2 =
b) 9a2 + 18ac + 9c2 = c) 0,25a2 + ac + c2 = d) a2 + ab + 0,25b2 = e) 0,25a2 + 0,5ac + 0,25c2 = f) a2 + 4ab + 4b2 = g) 4a2 + 4ac + c2 = h) a2 + 6ab + 9b2 = i) 16a2 + 4ac + c2 = j) a2 + 10ac + 25c2 = |
geht
nicht
(3a + 3c )2 (0,5a + c )2 (a + 0,5b )2 (0,5a + 0,5c )2 (a
+ 2b )2
(2a + c )2 (a + 3b )2 geht nicht (a + 5c )2 |
a) 144x2
+ 72xy + 9y2 =
b) 0,25a2 + 6ab + 36b2 = c) 16a2 + 48ac + 36c2 = d) 25a2 + 75ad + 25d2 = e) 121a2 + 154ay + 49y2 = f) 25x2 + 40xy + 4y2 = g) 4a2 + 2ab + 0,25b2 = h) 16u2 + 24uv + 9v2 = i) 0,04a2 + 1,6ac + 16c2 = j) 49a2 + 14as + s2 = |
(12x
+ 3y )2
(0,5a + 6b )2 (4a + 6c )2 geht nicht (11a + 7y )2 geht
nicht
(2a + 0,5b )2 (4u + 3v )2 (0,2a + 4c )2 (7a + s )2 |