Question

Wykonaj działania :(-4kdo kwadratu-2z)kwadrat
(2k-9a)*(2k+9a)
(4nm-k)*(k+4mn)
(-3b+2s)kwadrat

Answer 1

1... = 16 k^4 + 16 z k^2 + 4 z^2 = 4(4 k^4 + 4 z k^2 + z^2)
2 ... = 4 k^2 - 81 a^2
3... = 16 m^2 n^2 - k^2
4... = 9 b^2 - 12bs + 4 s^2