Question

find the product using suitable identity 78x82.
​

Answer 1

Answer:

$(80 - 2)(80 + 2) \\ = {80}^{2} - {2}^{2} \\ = 6400 - 4 \\ = 6396$

Answer 2

Answer:

commutative

Step-by-step explanation:

78×82=82×72

1. 6396