Question

Find the following square using identities: (x^3 + 2y)²

Answer 1

Answer:

x⁶ + 4x³y + 4y²

Step-by-step explanation:

Identity » (a+b)² = a²+2ab+b²

(x³+2y)²

= (x³)² + 2(x³)(2y) + (2y)²

= x⁶ + 4x³y + 4y²

Answer 2

Answer:

[x^3+2y]^2

[a+b]^2       =      a^2+2ab+b^2

a=x

b=2

[x^3+2y]^2  =  [x]^2+2*x*2+[2]^2

                     =x^2+4x+4

hope it helps

tq......//////

Step-by-step explanation: