Question

give the formula of a plus b whole 4​

Answer 1

Answer:

(a+b)⁴ = ((a+b)²)² = (a²+b²+2ab)²

Answer 2

Answer:

${a}^{4} + {b}^{4} + 4 {a}^{3} b + 4a {b}^{3} + 6 {a}^{2} {b}^{2}$

Step-by-step explanation:

(a+b)4

= (a+b)3(a+b)

= (a3 + 3a2b + 3ab2 + b3)a + (a3 + 3a2b + 3ab2 + b3)b

= a4 + 3a3b + 3a2b2 + ab3 + a3b + 3a2b2 + 3ab3 + b4

= a4 + 4a3b + 6a2b2 + 4ab3 + b4

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