Question

Which method is correct when finding the product of (x + 2)2? Justify your answer in complete sentences.


Method 1

Method 2

(x + 2)2

(x + 2)2

x2 + 22

(x + 2)(x + 2)

x2 + 4

x2 + 4x + 4

Answer 1

Method 1

(x + 2)^(2)

x^(2) + 2^(2)

x^(2) + 4

Method 2

(x + 2)^(2)

(x + 2)(x + 2)

x^(2) + 4x + 4

Answer 2

Method 2.