Ushtrimi 11

Plotësoni.

a) $\square \times 3xy \times xy^2 = 15x^4y^3$

b) $8xy \times \square \times 2xy = 4x^3y^2$

c) $\square \times 5a^2b \times 3a = 60a^5b^3$

d) $0,5a^2b \times \square \times abc = \frac{1}{4}a^4b^3c^2$