Question

(1) b
2
2
Evaluate:
(i) (38)2 – (37)
(iv) (105)2 – (104)
2​

Answer 1

$(i) \: {38}^{2} - {37}^{2} = (38 + 37)(38 - 37) \\ = 75 \\ (ii) \: {105}^{2} - {104}^{2} = 105 + 104 \\ = 209$