You are solving a quadratic by using the Quadratic Formula, What needs to be done to this function before we can identify a, b, and c?: 7x^2 + 2x = 4

1 answer

To use the Quadratic Formula, we first need to rewrite the quadratic equation in standard form, which is \( ax^2 + bx + c = 0 \).

The given equation is:

\[ 7x^2 + 2x = 4 \]

Now, we need to move all terms to one side of the equation so that it equals zero. We can do this by subtracting 4 from both sides:

\[ 7x^2 + 2x - 4 = 0 \]

Now that the equation is in standard form, we can identify the coefficients \( a \), \( b \), and \( c \):

  • \( a = 7 \)
  • \( b = 2 \)
  • \( c = -4 \)

With this, we can now apply the Quadratic Formula, which is:

\[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \]