Simplify the following expressions :
(i) (11+
) (11-
)
(ii) (5+
) (5-
)
(iii) 
(iv) (3+
) (3-
)
(v) 
(i) 
Because 
= 121 - 11 = 110
(ii) 
= 25 – 7 = 18
(iii) 
= 8 – 2 = 6
(iv) 
= 9 – 3 = 6
(v) 
= 5 – 2 = 3
3
Simplify the following expressions :
(i) (11+) (11-)
(ii) (5+) (5-)
(iii)
(iv) (3+) (3-)
(v)
(i)
Because
= 121 - 11 = 110
(ii)
= 25 – 7 = 18
(iii)
= 8 – 2 = 6
(iv)
= 9 – 3 = 6
(v)
= 5 – 2 = 3