Question

Which of the following not true?
option :
a) (7+8)+9 =7+(8+9)
b) (7*8)*9 =7*(8*9)
c) 7+8*9 = (7+8) *(7+9)
d) 7*(8+9) =(7*8)+(7*9)​

Answer 1

Answer:

c option is not correct

Answer 2

C is not correct. As rest of the options have equal results.