Odpowiedź :
[tex]2ab ^2*(-3b^2)=-6ab^4\\\\\\-7x*8x^2 * (-1y^2)=56x^3y^2\\\\\\ \frac{1}{4}a^2y^2 *(2 \frac{1}{3})=\frac{1}{4}a^2y^2 *( \frac{7}{3})=\frac{7}{12}a^2y^2[/tex]
[tex]2ab ^2*(-3b^2)=-6ab^4\\\\\\-7x*8x^2 * (-1y^2)=56x^3y^2\\\\\\ \frac{1}{4}a^2y^2 *(2 \frac{1}{3})=\frac{1}{4}a^2y^2 *( \frac{7}{3})=\frac{7}{12}a^2y^2[/tex]