Question

Simplify 4 -2 (4 to the negative power of 2?)

Answer 1

`a^(-n) = (1)/( a^(n) )`
So,
`4-2( 4^(-2))=4-2 (1)/( 4^(2) ) = 4-2 (1)/(16) = 4- (1)/(8)`
We amplify 4 with 8 and we get:

`(32-1)/(8) = (31)/(8)= 3,875`