Question

49
343
X X
1)2
64
7
pl answer it​

Answer 1

Step-by-step explanation:

7^2=49

2^3=8

7^3=343

4^3=64

consider numerator

(2^4/7^4)*(49^4/8^4)

=2^4/ * 7^4.7^3/ (2^4 & 7^4 get cancelled)

7^4 2^4.2^8

=7^3/4^3

now consider denominator

(-1)^21 power value is odd so that value is -1

343/64=7^3/4^3

now the fraction is

7^3/4^3 ÷ -7^3/4^3

=-1