Question

pls help 16 and 23 in two minutes

Answer 1

question 16.

given abc =0

either a=0 or b =0 or c=0

x be any number

a cannot be equal to zero and b also cannot be equal to zero because this form will be not defined so c =0

and hence answer is 1

question 23.

given 3^x=6561

=> 3^x=3^8

=> x= 8

3^x-3=3^5

=729

thanks