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general quadratic

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One zero to a quadratic expression 2014-10-06
Kevin pose la question :
Find a value of n such that f(x) = 3^x2 + nx + 6 only has one zero, is this the only solution to the question?
Penny Nom lui répond.
The radius of a cylinder 2011-04-27
Jazmin pose la question :
Hi, I don't understand how to find the radius in a cylinder with only the surface area (143.7) and the height (0.8)? I know that the formula is 2pir2+2pirh, but I don't see how to isolate the r? I appreciate your help.
Penny Nom lui répond.
The intersection of two graphs 2010-06-27
Austin pose la question :
In depth explanation of how to find the intersection points of functions y=-4t+300 and y=-4.9(t-5)^2+300
Stephen La Rocque lui répond.
A quadratic equation 2008-06-03
Drew pose la question :
A solution of x^2-8x=-17 is

-4 or -4+I or 4 or 4+i

Janice Cotcher lui répond.
A complex quadratic 2008-02-18
Ash pose la question :
z^2-(6+2i)z+(8+6i)=0

Solve for Z

Steve La Rocque and Penny Nom lui répond.
Is this unsolvable? 2006-09-19
Al pose la question :
Is this unsolvable???

2xy + 3x^2 - 3y + y^3 = 4x + 3 where y=3.
Penny Nom and Claude Tardif lui répond.

Solving x^2-3x+5=0 2001-11-30
Katy pose la question :
How do you find the solution to x2-3x+5=0?
Penny Nom lui répond.
25 y^2 + 20 y z - 4 z^2 2001-05-15
Kimmy pose la question :
i don't know how to factor the trinomial 25y2 + 20yz - 4z2. I can get it, but i get messed up on getting the minus 4 at the end. all i get is a plus 4. Can it even be factored.
Penny Nom lui répond.
Derive the quadratic equation 2000-01-01
Thuy pose la question :
My teacher asked us this question in which i can't understand when she asked to derive the quadratic equation. What does this mean?
Penny Nom lui répond.
Critical numbers 1999-11-17
Sarah pose la question :
My question is this:

If f(x)=2x3+4x2-9x+8

and the derivative is f'(x)=6x2+8x-9,

how do I find the critical points if f'(x) is not factorable??
Penny Nom lui répond.

Solving Quadratics 1998-07-16
Fred Goodrich pose la question :
I need a step by step lesson on solving quadratic equations.

Thank you,
Penny Nom lui répond.

 
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