Complete the table below by checking the description of roots and solve the balie of discriminant b²-4ac.
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Complete the table below by checking the description of roots and solve the balie of discriminant b²-4ac.
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Answer:
1.
D= 0
nature of roots: real, rational and unequal.
2.
D= 25
nature of roots: real, rational and unequal.
3.
D= 12
nature of roots: real, irrational and unequal.
4.
D= 0
nature of roots: real, rational and equal.
5.
D= -20
nature of roots: non-real or imaginary and unequal.