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Mathematics
Braydon Moss
20 January, 00:46
What is the discriminant of 3x2-10-2
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Jovanni Mccarthy
20 January, 04:38
0
In form
ax^2+bx+c=0
the discriminant is
b^2-4ac
when
1. b^2-4ac>0, the equation has 2 real roots
2. b^2-4ac=0, the equation has 1 real root
3. b^2-4ac<0, the equaton has 2 complex roots
3x^2-10x-2
a=3
b=-10
c=-2
b^2-4ac
(-10) ^2-4 (3) (-2)
100+24
124>0
2 real roots
the discriminant is 124
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