Question

12
Simplify : 22 + 1122 - 5z - 1122 + 5z
(a) z2
(b)-z2
(c) 52
(d) -52​

Answer 1

Answer:

22

Explanation:

as if we together take -5z and +5z and set aside they become 0 an if we subtract 1122-1122 we get 0,now only 22 is left the n22 will be the answer not which in the option.