Question

I. Desarrollar los siguientes productos notables: 1. (2x + 5) 2 = 2. (3x2 – 2y)2 = 3. (5x – 3)2 = 4. 2 2 (x + 2y) = 5. – 3x) (9 + 3x) = 6. (x + 2y) (x – 2y)= 7. (3x + 2y) (3x – 2y) = 8. (x - 7) (x + 7) = 9. (m + 8) (m – 8) = 10. (x2+ 5) (x2 – 5) = 11. (a – 7) (a – 4) = 12. (z + 9) (z – 14) = 13. (5x + 7) (5x + 4) = 14. (x + 5) (x + 2) =

Answer 1

${(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2}$

${(2x + 5)}^{2} = 4 {x}^{2} + 20x + 25$

${(3 {x}^{2} - 2y) }^{2} = 9 {x}^{4} - 6 {x}^{2} y + 4 {y}^{2}$

${(5x - 3)}^{2} = 25 {x}^{2} - 30x + 9$