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OpenStudy (anonymous):
Can you explain to me how to factor a trinomial? 25a2 - 70a + 49
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OpenStudy (anonymous):
|dw:1333038869912:dw| 25a^2 - 70a + 49 =(5x-7)^2
OpenStudy (anonymous):
alright but how did you get that answer?
OpenStudy (anonymous):
by the cross shown in my drawing
OpenStudy (anonymous):
Do you know this method?
OpenStudy (anonymous):
no... :/
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OpenStudy (anonymous):
Let me try to explain it :D
OpenStudy (anonymous):
thanks :)
OpenStudy (anonymous):
25 = 5x5 49 =(-7)*(-7) |dw:1333039206900:dw| -35 -35 =-70 which is the coeff of x term
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