ShmoopTube

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Thank you We sneak in and here's your shmoop choose

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your brought to you by problems involving positive and negative

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signs Well we bet you're pregnant with anticipation Exactly One

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of the positive or negative signs in the following equation

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is incorrect changing I don't like the equation True which

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one should be changed Here we go let's read x

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squared months eight x minus fifteen equals quantity x minus

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three times the quantity x minus five Okay so there

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are four minus signs in the equation given and we're

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told that exactly one of them is an imposter and

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needs to be changed to a plus sign We've got

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our people at the fbi on this one but so

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far they've come up with nothing anyway Let's take a

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look at the right half the equation for a if

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we made either those signs positive we'd still get our

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x square to me outside terms and come out to

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negative fifteen which is good but we'd have either three

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x minus five Acts or 5 x minus 3 x

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and neither of those would get us to a negative

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eight acts which is what shows up on the left

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Hand side of the equation So no dice However if

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we leave those signs alone then our outside terms are

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going to result in a positive fifteen which is not

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what we have going on here What does that tell

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us Well it basically tells us that we need to

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change the sign in front of the fifteen to a

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plus sign and now everything works out just perfectly Our

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imposter has been apprehended really the low brimmed hat shades 00:01:27.729 --> [endTime] should've thought

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