Tính:
a) (x + 2y)2
b) (x – 3y)(x + 3y)
c) (5 – x)2
d) (x – 1)3
e) (3 – y)2
f) (2x + 3y)3
g) (5x – y)2
h) (x + 4)( x2 – 4x + 16)
i) (x – 3y)(x2 + 3xy + 9y2)
j) (y – 3)(y + 3)
k) (m + n)(m2 - mn + n2)
l) (2 – a)(4 + 2a + a2)
Loga
Sinh Học lớp 12
