SOLUTION: 1. Determine the number of solutions and classify the type of solutions for each of the following equations. Justify your answer. x2 – 4x - 7 = 0

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 1. Determine the number of solutions and classify the type of solutions for each of the following equations. Justify your answer. x2 – 4x - 7 = 0       Log On


   

Question 193503: 1. Determine the number of solutions and classify the type of solutions for each of the following equations. Justify your answer.
x2 – 4x - 7 = 0

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
D=b%5E2-4ac=%28-4%29%5E2-4%281%29%28-7%29=16%2B28=44
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so since the discriminant D>0 therefore there are 2 real solutions