+0

# Hmm

0
32
4
+236

How di I turn a decimal like -4.646 into a number like -2 - sqrt(7)

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#1
+78643
+3

Notice that

-2 - √ 7  is an irrational number  [ can't be expressed as a fraction]

But    -4.646   is rational   [ can be expressed as a fraction ]

So......it's impossible to turn a rational into an irrational  -  and vice-versa......

CPhill  Nov 2, 2017
#2
+236
+2

well i had 4.646 rounded...desmos doesn't go very deep into decimals for me XD

#3
+78643
+1

Were you trying to solve an equation,OBT????

If so...post the problem and we'll see if we can solve it

CPhill  Nov 2, 2017
#4
+236
+1

i figured it out, don't trust desmos XD

thanks anyway! i have no idea how many of my questions you have answered, but it is definitely a lot!

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