SOLUTION: Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 7x

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 7x      Log On


   

Question 244344: Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 7x
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!

Add -1 to both sides:



Which is standard form.

To calculate the discriminant, ,



Observe that , , and

Plug in the values and do the arithmetic.

John