Question

(a+2b)⁴ urgenteeeeeeeeeeee

Answer 1

(a+2b)⁴

(a+2b) x (a+2b) x (a+2b) x (a+2b)  

(a²+2ba + 2ba + 2b²) x (a² +2ba + 2ba + 2b²)

(a² + 4ba + 2b²) x (a² + 4ba + 2b²)

a⁴  + 4ba³ + 2b²a² + 4ba³ + 16b²a² + 8b³a + 2b²a² + 8b³a + 4b⁴  

a⁴  + 8ba³ + 20b²a² + 16b³a + 4b⁴

a⁴  + 8ba² + 20(ba)² + 16b³a + 4b⁴

Answer 2

$(a + 2b {)}^{4} = (a + 2b {)}^{2} \times (a + 2b {)}^{2} = \\ ( {a}^{2} + 4ab + 4 {b}^{2} )( {a}^{2} + 4ab + 4 {b}^{2} ) = \\ {a}^{4} + 4 {a}^{3} b + 4 {a }^{2} {b}^{2} + 4 {a}^{3} b + 16 {a}^{2} {b}^{2} + 16 a {b}^{3} + 4 {a}^{2} {b}^{2} + 16a {b}^{3} + 16 {b}^{4} = \\ \boxed{{a}^{4} + 8 {a}^{3} b + 24 {a}^{2} {b}^{2} + 32a {b}^{3} + 16 {b}^{4}}$