Question

. Evaluate: (i) (38)2 – (37)2 (iv) (105)2 - (104)2 - (ii) (75)2 – (74)2 (v) (141)2 – (140)2 (iii) (92)2 – (91)2 (vi) (218)2 – (217)2​

Answer 1

1. 38+37 = 75

2. 75+74 = 149

3. 92+91 = 183

4. 105+104 = 209

5. 141+140 = 281

6. 218+217 = 435.

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