Question

Q2)Use the formula to find the values.(2) 97×103​

Answer 1

Answer:

9991

Step-by-step explanation:

97 can be written as 100 - 3 and

103 can we written as 100 + 3

so

(100-3)(100+3)

using formula (a+b)(a-b) = a²-b²

100²-3²

10,000 - 9

9991

Answer 2

QUESTION :

Use the formula to find the values. 97×103

ANSWER :

97 = (100-3)

103 = (100+3)

97×103 = (100-3)(100+3)

FORMULA : (a+b)(a-b) = a^2 - b^2

97×103 = 100^2 - 3^2

97×103 = 10000 - 9

97×103 = 9991

FINAL ANSWER : 9991