Question

1. (5b – 2)² =
2. (x – 4y)² =
3. (z – 3y)² =
4. (6a – 4b)² =
5. (2b – 2)² =
me ayudan por favor es para mañana son productos notables

Answer 1

Hola!

Explicación paso a paso:

1.-

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

2.-

${(x - 4y)}^{2} = {x}^{2} - 2(x)(4y) + {(4y)}^{2} = {x}^{2} - 8xy + 16 {y}^{2}$

3.-

${(z - 3y)}^{2} = {z}^{2} - 2(z)(3y) + {(3y)}^{2} = {z}^{2} - 6yz + 9 {y}^{2}$

4.-

${(6a - 4b)}^{2} = {(6a)}^{2} - 2(6a)(4b) + {(4b)}^{2} = 36 {a}^{2} - 48ab + 16 {b}^{2}$

5.-

${(2b - 2)}^{2} = {(2b)}^{2} - 2(2b)(2) + {2}^{2} = 4 {b}^{2} - 8b + 4$