1. Determine whether the following equations have a solution or not? Justify your answer.
a) x2 + 3x - 15 = 0
b) x2 + x + 4 = 0
c) x2 – 4x - 7 = 0
d) x2 – 8x + 16 = 0
e) 2x2 - 3x + 7 = 0
f) x2 – 4x - 77 = 0
g) 3x2 - 7x + 6 = 0
h) 4x2 + 16x + 16 = 0
2. If x = -3 and x = 4, then form a quadratic equation.
3. What type of solution do you get for quadratic equations where D < 0? Give reasons for your answer. Also provide an example of such a quadratic equation and find the solution of the equation.
4. Create a real-life situation that fits into the equation (x + 3)(x - 5) = 0 and express the situation as the same equation.
Asked by Anonymous at 4:55 PM on Feb. 6, 2009 in Money & Work
Answer by haileysmom15 at 4:58 PM on Feb. 6, 2009
Answer by SThompson21 at 4:58 PM on Feb. 6, 2009
Answer by Erica_Smerica at 8:30 PM on Feb. 6, 2009
Answer by Erica_Smerica at 8:30 PM on Feb. 6, 2009
Answer by Anonymous at 11:50 PM on Feb. 6, 2009
Answer by camtri3 at 10:02 PM on Feb. 7, 2009
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