Question

Simplify the expression 14x^-2 for x is 7

Answer 1

9514 1404 393

Answer:

2/7

Explanation:

Put the number where x is and do the arithmetic.

`14x^(-2)=(14)/(x^2)=(14)/(7^2)=(7\cdot2)/(7\cdot7)=\boxed{(2)/(7)}`