Question

Esto alguien me ayuda

Answer 1

1. (a+3) . (a-1) = a² - a + 3a - 3 = a² + 2a - 3
2. (a-3) . (a+1) = a² + a - 3a - 3 = a² - 2a -3
3. (x+4) . (x-4) = x² - 4x + 4x - 16 = x² - 16
4. (m-6) . (m-5) = m² - 5m - 6m + 30 = m² - 11m + 30
5. (3-x) . (5-x) = 15 - 3x - 5x + x² = x² - 8x + 15
6. (-a-2) . (-a-3) = a² + 3a + 2a + 6 = a² + 5a + 6
7. (3x-2) . (y+2x) = 3xy + 6x² - 2y - 4xy = 6x² -xy - 2y
8. (5x-4y) . (2y-3x) = 10xy - 15x² - 8y² + 12xy = -15x² + 22xy - 8y²
9. (5a-7b) . (a+3b) = 5a² + 15ab - 7ab - 21b² = 5a² + 8ab - 21b²
10. (7x-3) . (2x+4) = 14x² + 28x - 6x - 12 = 14x² + 22x - 12
11. (b-a) . (8a-4b) = 8ab - 4b² - 8a² + 4ab = -8a² + 12ab - 4b²
12. (6m-5m) . (m-a) = m . (m-a) = m² - am
13. (8n-9m) . (4n+6m) = 32n² + 48nm - 36nm - 54m² = 32n² + 12nm - 54m²
14. (-7y-3) . (2y-11) = -14y² + 77y - 6y + 33 = -14y² + 71y + 33