Question

ayuda porfis urgentee

Answer 1

1. (x + y)^2 = x^2 + y^2 +2xy
2. (x + 2)(x + 3) = x^2 + 3x + 2x + 6; x^2 + 5x + 6
3. (x + 1)(x - 1) = x^2 - 1^2; x^2 - 1
4. (x - 1)^2 = x^2 + 1^2 - 2*1*x
5. (n + 3)(n + 5) = n^2 + 3n + 5n + 15; n^2 + 8n + 15
6. (m - 3)(m + 3) = m^2 - 9
7. (a + b - 1)(a + b + 1) = (a + b)^2 - 1^2; a^2 + b^2 +2*a*b + 1
8. (1+b)^2 = 1^2 + b^2 + 2*1*b
9. (a^2 + 4)(a^2 - 4) = a^4 - 4^2
10. (3ab - 5x^2)^2 = (3ab)^2 +(5x^2)^2 - 2 * (3ab*5x)