# Numerical Processes: Indices and Logarithms

#### Olasupsky

##### New member
Can you solve this by showing steps?

(1-4) ^-2

The answer on the text book is 16 but my instinct tells me it is 1/9

#### Olasupsky

##### New member
Can you solve this by showing steps?

(1-4) ^-2

The answer on the text book is 16 but my instinct tells me it is 1/9

#### Harry_the_cat

##### Senior Member
(1-4)^-2 = 1/9
but
(1/4)^-2 = 16.
Have you read the question correctly? Sure the minus sign isn't a division sign?

#### Subhotosh Khan

##### Super Moderator
Staff member
(1-4)^-2 = 1/9
but
(1/4)^-2 = 16.
Have you read the question correctly? Sure the minus sign isn't a division sign?
Like HTC said, make sure that you problem is stated correctly:

$$\displaystyle (1\ \div \ 4)^{-2} = 16$$

Otherwise, your "text book" answer is incorrect.