Question

Use a suitable identity to get each of the following : (i) 512 -492

(ii) 1532 -1472 ;(iii) 103 x 98​

Answer 1

Answer:

a.20

b.60

Step-by-step explanation:

c.11094

it is full answer

Answer 2

Step-by-step explanation:

(i) 512 - 492

(500+12) - (500-8)

500+12-500+8

12 + 8 = 20

(ii) 103 × 98

(100+3) × (100+-2)

(100)² + (3-2)100 + 3(-2)

10,000 + 100 - 6

10094