Question

please solve this problem​

Answer 1

1. 4t(a+b)

=>4ta+4tb

2.xy(x-y)

=>

${x}^{2} y - x {y}^{2}$

$3.4y(4y + 3x) \\ \\ = > 16 {y}^{2} + 12xy$

$4 .5a( {a}^{3} + 3 {a}^{4} ) \\ \\ = > 5 {a}^{4} + 15 {a}^{5}$

$5. \: 0(ab + bc) \\ \\ = > 0$

$6. - 5 {x}^{2} ( {x}^{2} - {y}^{2} + {z}^{2} ) \\ \\ - 5 {x}^{4} + 5 {x}^{2} {y}^{2} - 5 {x}^{2} {z}^{2}$

$7. \: 4y(3 {y}^{2} + 5y - 7) \\ \\ = > 12 {y}^{3} + 20 {y}^{2} - 25y$

$8. \: \: 3z( {z}^{3} - 4 {y}^{2} - 5) \\ \\ 3 {z}^{4} - 12 {y}^{2} z - 15z$

Answer 2

Step-by-step explanation:

I am know that my answer is not surely