Sunday, July 26, 2009

Write in standard form. Determine the values of a,b, c, and c.?

2. x^2 + 6x -5 = 0





4. 4x^2 + 20x = 0





6. 3x^2+ 10x + 8 = -17x -2

Write in standard form. Determine the values of a,b, c, and c.?
2 is already in standard form. a = 1, b = 6, c = -5.





4 is already in standard form. a = 4, b = 20, c = 0.





6:





3x² + 10x + 17x + 8 + 2 = 3x² + 27x + 10





a = 3, b = 27, c = 10.
Reply:The standard form of a quadratic equation is


ax^2 + bx + c





the first two are in standard form already -- you should be able to figure out what a, b, and c are





for #6, add 17x+2 to both left hand side and right hand side so that you have "0" on the right and the left hand side takes the standard form.


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