[tex] \sqrt[3]{8} ab \times ( - 4) {b}^{2} = 2ab \times ( - 4) {b}^{2} = - 8a {b}^{3} [/tex]
[tex] - 0.24 {a}^{2} {b}^{4} \times ( - \frac{1}{2} a) \times 4 = \frac{6}{25} {a}^{2} {b}^{4} \times \frac{1}{2} a \times 4 = \frac{3}{25} {a}^{3} {b}^{4} \times 4 = \frac{12}{25} {a}^{3} {b}^{4} [/tex]
[tex]0.8 {x}^{3} y {z}^{2} \times ( - 2 {)}^{2} yz = 0.8 {x}^{3} y {z}^{2} \times 4 yz = 3.2 {x}^{3} {y}^{2} {z}^{3} [/tex]
[tex] - 2 \sqrt[3]{27} {x}^{3} {y}^{2} \times ( - \sqrt{ \frac{1}{4} } ) {z}^{2} = - 2 \times 3 {x}^{3} {y}^{2} \times ( - \frac{1}{2} ) {z}^{2} = - 6 {x}^{3} {y}^{2} \times ( - \frac{1}{2} ) {z}^{2} = 3 {x}^{3} {y}^{2} {z}^{2} [/tex]
[tex]3.5a {b}^{3} \times \frac{1}{7} {a}^{2} b = \frac{35}{10} a {b}^{3} \times \frac{1}{7} {a}^{2} b = \frac{5}{10} {a}^{3} {b}^{3} = \frac{1}{2} {a}^{3} {b}^{3}[/tex]
[tex] - 2 \sqrt{2} a {b}^{2} \times \sqrt{2}b = - 2 \times 2 a {b}^{3} = - 4a {b}^{3} [/tex]
[tex] - {2}^{2} x {y}^{2} {z}^{3} \times ( - 0.55)x = - 4x {y}^{2} {z}^{3} \times ( - 0.55)x = 2.2 {x}^{2} {y}^{2} {z}^{3} [/tex]
