Hello, Mulya66!
I hope there's a typo in the problem.
. . Otherwise, I can't solve it.
. . . . . . . . . . . . . . . . . . . . .↓
Is it supposed to be: .
Then it factors: .
And we have: .
I am lost. The Algebra II book I use doesn't explain concepts very well. Does anyone know how to solve this problem as well as clearly explain their chosen steps?
Thanks in advance.