Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 220664: Is -4x squared = 0 a quadratic equation? I am supposed to solve each quadratic equation using any technique, name the technique, and check. But I do not think this is a quadratic equation because it is not written in a form of y = ax squared + bx + c. I think to solve x would equal 0. Am I right or do I totally not understand?
Click here to see answer by stanbon(75887) |
Question 220641: Sammy spends 10 Euros on some cans of drink. In another shop she sees that the same cans are each 10 cents cheaper, and she calculates that she could have brought 5 more cans for the same money. How many cans did she buy?
Click here to see answer by josmiceli(19441)  |
Question 220954: hi, i need help in solving an equation using the quadratic formula,
i know what the quadratic formula is but i don't know how to apply it to this particular question
the question is: 2x^2+7x = 1-2x^2
the fact that it isn't in the form x^2 + bx + c = 0 is making it hard for me solve,
at the moment i've got as far as changing the equation to 2x^2+7x - 1-2x^2=0
but i don't know whether thats right or wrong :S
thank you!
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 221214: Suppose that X represents one of two positive numbers whose sum is 50. Determine a function F that represents the product of these two numbers. For what two such numbers is the product equal to 400?
Click here to see answer by RAY100(1637) |
Question 221378: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x).
f(x)=-(x+8)^2-7
The vertex =
The line of symmetry =
The minimum or maximum value=
Is this maximum or minimum?
Thank you!
Click here to see answer by likaaka(51) |
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