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OpenStudy (megan7):
quadratic equation
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OpenStudy (megan7):
\[x^2+2x-15=0\]
OpenStudy (wolf1728):
Try factoring. What 2 numbers when added =2 and when multiplied =-15?
OpenStudy (megan7):
ohh okay so it would be (x+5) (x-3) ?
OpenStudy (wolf1728):
Yes, and so "x" would equal?
OpenStudy (megan7):
x=-5 and x=3
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OpenStudy (wolf1728):
Very good. You did that quite well.
OpenStudy (megan7):
thanks so much :)
OpenStudy (wolf1728):
u r welcome
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