SOLUTION: The quadratic formula must be used to solve for x when your quadratic equation is __________ and cannot be factored.

Algebra ->  Test -> SOLUTION: The quadratic formula must be used to solve for x when your quadratic equation is __________ and cannot be factored.      Log On


   

Question 1047090: The quadratic formula must be used to solve for x when your quadratic equation is __________ and cannot be factored.
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
i believe the underlined should be replaced with "in standard form".

standard form is ax^2 + bx + c = 0

in order to use the quadratic formula, the equation has to be converted to standard form.

once in standard form, you get:

a is the coefficient of the x^2 term.
b is the coefficient of the x term.
c is the constant term.

the quadratic formula is x1 = %28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 and x2 = %28-b-sqrt%28b%5E2-4ac%29%29%2F%282a%29

this can also be written as:

x = %28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29

you would simply replace a,b,c from the equation into the formula and solve for x.

here's a reference on standard form of a quadratic equation.

https://www.mathsisfun.com/algebra/quadratic-equation.html