How do you solve x^2 - 3x - 3 = -5 using the quadratic formula?

1 Answer
Apr 24, 2018

x = 2, x = 1

Explanation:

The quadratic formula is always fun! Let's start with it.
(-b+-sqrt(b^2-(4ac)))/(2a)

The variables, b a, and c represent the coefficients to the terms you possess in the original equation. a representing the coefficient attached to the x^2 term, b representing the coefficient attached to the x term, and c representing the constant, which is, in your case, 2.

So, with this in hand, we can rewrite the formula to obtain:
(-(-3)+-sqrt((-3)^2-(4(1)(2))))/(2(1))

So you simplify to obtain
(3+-sqrt(1))/(2(1))

So you get 2 and 1 from + and - the square root, respectively.