what are 2 solutions for x in terms of b?

Question

If x²-15b²=2xb, what are 2 solutions for x in terms of b?

Answer 1

x² - 15b² = 2bx

x² - 2bx - 15b² = 0

(x + 3b)(x - 5b) = 0

 

x = -3b

or

x = 5b