Question 2: Work out
(a) \( 5-2^{2} \)
(b) \( 7+3^{2} \)
(c) \( 9^{2}+1 \)
(d) \( 6^{2}-5^{2} \)
(e) \( (7-2)^{2} \)
(f) \( (4+3)^{2} \)
(g) \( (1+2)^{3} \)
(h) \( (2+8)^{3} \)
(i) \( 10-\sqrt{ } 16 \)
(j) \( \sqrt{ }(2+14) \)
(k) \( \sqrt{4}+3^{2} \)
(l) \( 2 \times 5-\sqrt{4} \)