Question

(0,1x³+2,5z)(0,1x³-2,5z)

Answer 1

${0.1}^{2} \times {x}^{6} - {2.5}^{2} \times {z}^{2} \\ { \frac{1}{10} }^{2} \times {x}^{6} - { \frac{5}{2} }^{2} \times {z}^{2} \\ \frac{1}{100} {x}^{6} - \frac{25}{4} {z}^{2}$