Question

2,1z³+3,05z³
1/3qĸ+1/4qĸ
СРОЧНО ДАЮ 20 БАЛОВ!!!!!!!!​

Answer 1

$\displaystyle\bf\\1)\\\\2,1z^{3} +3,05z^{3} =5,15z^{3} \\\\\\2)\\\\\frac{1}{3} qk+\frac{1}{4} qk=\frac{4+3}{12} qk=\frac{7}{12} qk$