Characterize the nature of the roots of the following quadratic equations using the discriminant. WITH SOLUTION
1.) x² + 9x + 20 = 0
2.) x² + 6x + 13 = 0
3.) 3x² - 5x = -4
4.) x² - 2x - 5 = 0
5.) x² + 8x + 16 = 0
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Characterize the nature of the roots of the following quadratic equations using the discriminant. WITH SOLUTION
1.) x² + 9x + 20 = 0
2.) x² + 6x + 13 = 0
3.) 3x² - 5x = -4
4.) x² - 2x - 5 = 0
5.) x² + 8x + 16 = 0
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Answer:
1.)x²+9x+20=0
(x+4)(x+5l
x1= -4
x2= -5
5.) x²+8x+16=0
(x+4)(x+4)
x1= -4
x2= -4