Question

(x+4y)² formula (a+b)²=a² +2ab+b²

Answer 1

Answer:

(x+4y)²

Step-by-step explanation:

identity:(a+b)=a²+2ab+b²

x²+2(x)(4y)+(4y)²

x²+8xy+16y²

Answer 2

Answer:

x^2+8xy+16y^2

Step-by-step explanation:

(x+4y) ^2 = x^2 + 2(x)(4y)+(4y)^2

=x^2+8xy+16y^2