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Solve. x2 + 10x = -2
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you want to use the formula again, or you want to complete the square? since \(10\) is even it is actually quicker to complete the square i can walk you through it if you like, or you can use the formula
probably completely the square /:
k takes just a couple steps 1) what is half of 10?
that would definitely be 5
right (math skillz) 2) what is \(5^2\) ?
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now that would definitely be 25
right again we go from \[ x2 + 10x = -2\] directly to \[(x+5)^2=-2+25\\ (x+5)^2=23\]
and thats -5 +/- sqrt23 right?
two steps remain 3) take the square root of both sides (don't forget the \(\pm\) \[x+5=\pm\sqrt{23}\]
yeah what you said snappy right?
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super snappy
you want to make me happy you gotta make is snappy (george clinton)
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