#The number of all real solutions of the equation is:

50 messages · Page 1 of 1 (latest)

hidden dune
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How would you solve this problem, also the equation that is in square root the, we need to say that square root larger or equal to zero. I don't get it bcs discrimanant is negative? Won't that affect my equation since I have i (i^2=-1)?

humble coveBOT
past arch
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Descriminant of x²-3x+6 does not matter

hidden dune
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Why is that?

past arch
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Because you're not solving x²-3x+6=0

hidden dune
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I'm solving the whole equation

past arch
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exactly

hidden dune
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But I need to say that square root is larger or equal to zero?

past arch
hidden dune
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How would you solve this problem?

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This is how I did

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I said that square root is equal to T\

karmic kite
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$x^2 - 3x + 6 >= 0$

winged nightBOT
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frosty_flames

karmic kite
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tho in this case it

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works for all values

hidden dune
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So instead of looking square root only I need to look at whole bcs it's quadratic formula?

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I mean the whole problem

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Not square root only

karmic kite
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just the square root

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the other u can treat as a polynomial which is continuous (proof is kinda complex)

hidden dune
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What??? How is that

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I got the real answer

karmic kite
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what is ur answer

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oh shit i didnt see the = 0

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i thought it meant the domain lmao

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thats on me

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to solve this bring the square root to one side and square both sides

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and evaluate

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tho its gonna be a quartic so prolly find like a rational root

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and evaluate

soft meteor
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this is an equa

karmic kite
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yeah i didnt see that until now ;-;

hidden dune
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t1=2 and that is good answer

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t2=-5/2

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That is not right bcs square root cannot be negative

past arch
hidden dune
hidden dune
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Oh yeah

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I wrote it in my book

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You are right

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Forgot to type it in mathway

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I just can't understand why we don't need to look at square root which is complex number :/

soft meteor
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i try solving it and my ans are 2,38

hidden dune
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I put equation on mathway and it says x=1.2