Question

find X so that: (2 by 9)^7 × (2 by 9) ^2 = (2 by 9)^2x-1​

Answer 1

Answer:

(2/9)7×(2/9)2=(2/9)2x_1

=(2/9)7+2=(2/9)2x_1

=(2/9)9=(2/9)2x_1

then,

2x_1=9

=2x=9+1

=2x=10

=x=10/2

=5 ans

Answer 2

Answer:

0

Step-by-step explanation: