00:01
When we're solving equations that have exponents higher than two, probably the best way for us to do this is by factoring.
00:07
And in order for us to factor these, we need to make sure that we have zero on one side of the equation.
00:14
So in this example here, you'll notice that i have non -zero stuff on both sides.
00:19
So i'm going to subtract this 4x to the third from both sides and bring it all over here.
00:25
So i would have a zero over there on the right -hand side.
00:30
From here, when we factor, we notice that we have a greatest common factor of x to the third.
00:36
And if i factor that out, i'm left with x squared minus 4 equals 0.
00:44
But we're not finished because x squared minus 4 is a difference of two squares, which factors further into x plus 2 times x minus 2...