Question

. Find the square of the following numbers, using usual method : (i) 94 (ii) 103 ​

Answer 1

Answer:

(90 + 4) ^2

(90) ^2 +(4) ^2 + 2 × 90 × 4

8100 + 16 + 720

= 8836 is the right answer.

(100 + 3) ^2

(100) ^2 + (3) ^2 + 2×100×3

10000 + 9 + 600

= 10609 is the right answer.

Answer 2

Answer:

8836

Step-by-step explanation:

(90+4)^2

(90+4) (90+4)

(90*90) + (90*4) + (4*90) + (4*4)

8100+360+360+16

8836