Use the discriminant to determine how many real solutions the equation 2x^2-10x+20=0 have?
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D=b2-4ac
0=(10)2-4*2*20
0=100-160
160=100
This equation have only one real root that is 100
0=(10)2-4*2*20
0=100-160
160=100
This equation have only one real root that is 100
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