How do you simplify 968?

1 Answer
Jul 19, 2017

Multiply the top and bottom by (6+8) to make a difference of two squares and remove the square root.

Explanation:

The difference of two squares:
(a+b)(ab)=a2ab+abb2=a2b2

=9(6+8)(68)(6+8)

=54+9862(8)2

=54+98368

=54+9828

This is now simplified, as a fraction can have a root on top, but not on the bottom (as then it is irrational).

You could also round this value to 2.84, but the answer calculated is exact.