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OpenStudy (anonymous):
factor: 100x^2-60x+9
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OpenStudy (anonymous):
cheat
jhonyy9 (jhonyy9):
x1,2=(60+/- sqrt(3600-3600)/200 =(60+/- 0)/200 = 60/200 = 6/20 = 3/10 so this equation will be (10x -3)(10x-3)
jhonyy9 (jhonyy9):
or (10x-3) squared
OpenStudy (anonymous):
sir please help me it's my home work (x2+2x+3)(x2+4x+3)>0
jhonyy9 (jhonyy9):
(x2+2x+3)>0 and (x2+4x+3)>0 or (x2+2x+3)<0 and (x2+4x+3)<0 so than
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jhonyy9 (jhonyy9):
x2+2x+3 is always gr
jhonyy9 (jhonyy9):
at
jhonyy9 (jhonyy9):
allways greater than zero
jhonyy9 (jhonyy9):
x2+4x+3 > 0 if x < -3 or x>-1 and have not possibility again thats all
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