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quadratic equation got you down?
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Topic: quadratic equation got you down? (Read 1278 times)
atomic7732
Global Moderator
Posts: 3849
caught in the river turning blue
quadratic equation got you down?
«
on:
February 13, 2013, 02:24:50 PM »
cant be factored?
last number positive?
x^2 + 8x + 65
divide b by -2
-4
square it and subtract from the last number...
49
wow it's a square!
take it's root
+/-7
tack on an i
-4 +/- 7i
magic, QED, 42
atomic, signing off
«
Last Edit: February 13, 2013, 03:26:23 PM by atomic7732
»
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Darvince
Posts: 1842
差不多
Re: quadratic equation got you down?
«
Reply #1 on:
February 13, 2013, 04:30:30 PM »
seems legit
-4-7i
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quadratic equation got you down?