Question

Can someone please explain what x is over here? And solve a part with working please :). Eternally grateful

Answer 1

`(1)/(9)` , 3 , 10

Explanation:

Using the rules of exponents

`a^(-m)` =
`(1)/(a^(m) )`

`a^{(m)/(n) }` =
`\sqrt[n]{a^m}`

`a^(0)` = 1

(a)

`6^(-x)` =
`(1)/(6^(x) )` =
`(1)/(9)`

(b)

`6^{(x)/(2) }` =
`\sqrt{6^(x) }` =
`√(9)` = 3

(c)

`6^(0)` +
`6^(x)` = 1 + 9 = 10