ICT Activity (Yu Hin, Qayyum, Khairul)

Compare each of the following pair of expressions. Are they equal? Explain.
a) 2n and 2 + n
     - They are not equal. 2n = 2 x n, not 2 + n.
b) 2n and n²
     - They are not equal. 2n = 2 x n but n² = n x n.
c) 2n + 2 and 2(n+2)
     - They are not equal. 2n + 2 = (2 x n) + 2 but 2(n+2) = 2 x (n + 2)
d) 2n² and (2n)²
     - They are not equal. 2n² = 2 x n² but (2n)² = 2n x 2n.