Question

4. Use the formula (a + b)(a - b) = (? - b2 to
evaluate the following.
(i) 52 x 48
(ii) 101 ~ 99
(111) 65 x 55
(iv) 4.8 x 5.2
1
(v) 104
x 9-
2 2
(vi) 203 x 197
(vii)
81x81-15x15
81-15
(4.23)2-(3.25)
(viii
4.23+3.25​

Answer 1

Answer:

it is very hard question

Answer 2

Answer:

answer answer answer answer