Question 986720: 1. What is the first thing you would do in order to use the quadratic formula to solve this equation?
x^2 + 7x = 9
2. In the following equation, what are the values of a, b, and c?
0 = 5x^2 + 3x - 19
3. Why/how does using the quadratic formula gives us two different roots (or solutions)?
4. Do ALL quadratic equations give us two roots (or solutions)? Explain your answer.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 1. What is the first thing you would do in order to use the quadratic formula to solve this equation?
x^2 + 7x = 9
Subtract 9 from each side.
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2. In the following equation, what are the values of a, b, and c?
0 = 5x^2 + 3x - 19
5, 3 and -19 respectively.
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3. Why/how does using the quadratic formula gives us two different roots (or solutions)?
It doesn't always. Sometimes it's the same root twice, called multiplicity 2.
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4. Do ALL quadratic equations give us two roots (or solutions)? Explain your answer.
Yes, but sometimes it's the same root twice as discussed above.
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