at least 5 own examples of quadratic Equations,then determine the nature of roots of quadratic equations.
3.
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at least 5 own examples of quadratic Equations,then determine the nature of roots of quadratic equations.
3.
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Answer:
1. x²+4x+4=0
= 4²-4(1)(4)
=16-16
=0
the nature of the roots are real and equal.
2. x²+6x+9=0
= 6²-4(1)(9)
= 36 - 36
=0
the nature of the roots are real and equal
3. 2x²+x+9=0
= 1²-4(2)(9)
= 1 - 72
= -71
the nature of the roots are imaginary and unequal.
4. x²+3x+2=0
= 3²-4(1)(2)
= 9 - 8
= 1
the nature of the roots are real,irrational and unequal.
5. 3x² - 10x + 3 = 0
= (-10)²-4(3)(3)
= 100-36
=64
the nature of the roots are real rational and unequal.