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Yeah Whoa Okay I see T mash bumpers on the

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radical problem for you You got a growed to expose

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Five is x minus four Question what value of X

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satisfy the above equation So what excuse do we have

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here All right well this is one radical equation It's

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all about overthrowing modern society And having everyone make a

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living is a butter churn Er what can we do

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to change this radical into something a little more civilization

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friendly Well square both sides of the equation for one

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So let's just go do that thing And we've got

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then to X minus five is the quantity x minus

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four squared What Looks like we have a much less

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anti social quadratic on our hands Now multiply out the

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term on the right and then gather all the light

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terms on one side of equations that gets us Was

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that X square than minus Its foreign minus eight Acts

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plus 4 square 16 Then we had to explain it's

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five over here So let's just get that over here

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Two zeros we're gonna add five there gets twenty one

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then we're going to subtract two x here so it

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gets is already on the ten X ofthe equation is

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X squared minus ten x plus twenty one Oh I

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see A three and seven Our future Now it's factoring

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time So what is it while X minus three and

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X minus seven right Well the solutions to this quadratic

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equation are X equals three and seven rights Opposite sign

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there That was negative SARS or positive which isn't the

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correct answer See they would've fooled you with tea there

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We don't want the solutions to this quadratic equation We

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want the solutions to the radical equation we started with

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So we have to plug in three to the original

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equation though and no dear things go awry How so

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While we get two times three that's six months five

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is three months for a square root of one is

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negative Once a one equals negative one How can that

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be Yeah taking the square root of something I won't

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ever give us a negative number So our only solution

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is X equal seven So you've got to get rid

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of the native one Just keeping a really well

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