00:01
Okay, in this problem we are given an equation 2x squared plus 6x minus 3 equals 0.
00:09
And we want to find out what x is.
00:12
So we can just use the quadratic equation.
00:15
That would be x equals minus b plus or minus square root of b squared minus 4ac over 2a.
00:31
And in our equation, 2 is a, 6 is b, and negative 3 is c.
00:39
So let's go ahead and plug in the numbers that we have.
00:43
That's 6, negative 6, plus or minus the square root of 6 squared minus 4 times 2 times negative 3 over 2a, which is 2 times 2.
01:03
So we can simplify this.
01:06
And we have negative 6 plus or minus square root of 36 minus 24, i'm sorry, plus 24.
01:16
So this negative times a negative makes that a plus...