Question

find the product of using suitable properties 7538×69×7538×31​

Answer 1

Answer:

1,21,54,10,68,716

Step-by-step explanation:

here, 7538 × 69 × 7538 × 31

      = 7538 × (70 - 1) × 7538 (30 + 1)

      = (7538 × 70 - 7538 × 1) × (7538 × 30 + 7538 × 1)

      = (5,27,660 - 7538) × (2,26,140 + 7538)

      = 5,20,122 × 2,33,678

      = 1,21,54,10,68,716

hope it will help you.