Question

porfiss me ayudan esta todo en el pdf

3b84c5e0901465a398b315b9fd9fb3e1.pdf

Answer 1

$1. \: 4(5x + 3) \\ 20x + 12$

$2. \: - 3(5xy - 2) \\ - 15xy + 6$

$3. \: 7x( {x}^{2} - y {x}^{2} ) \\ 7 {x}^{3} - 7y {x}^{3}$

$4. \: - 3 {x}^{2} {y}^{3} ( {x}^{3} - {y}^{2} ) \\ - 3 {x}^{5} {y}^{3} + 3 {x}^{2} {y}^{5}$

$5. \: 4 {x}^{2} ( {x}^{3} - {x}^{7} + 2 {x}^{4} ) \\ 4 {x}^{5} - 4{x}^{9} + 8 {x}^{6}$

$6. \: - 3x {y}^{2} (x - y + 2xy) \\ - 3 {x}^{2} {y}^{2} + 3x {y}^{3} - 6 {x}^{2} {y}^{3}$

$7. \: 5(x + 2y - 3z) \\ 5x + 10y - 15z$