TI-92 Calculator Help ?

Question

When I type "sqrt(20)" on my TI-92 calculator it returns "2(sqrt(5))".

The calculator simplifies the "sqrt(20)" instead of giving me, "4.472135..." the decimal form of it.

HOW can I get it to give me the "decimal form" of it instead of simplifying it for me?

Answer 1

√(2² . 5 )  =  Ã¢ÂˆÂš(4.5) = √20 = 4,47