Question

x^3- 5x^2- 3x+15=0

Solve for x.

Answer 1

\[x^3 - 5x^2 - 3x + 15 = 0
\\x^2(x - 5) - 3(x - 5) = 0
\\(x - 5)(x^2 - 3) = 0

\\x - 5 = 0
\\x^2 - 3 = 0

\\x = 5
\\x^2 = 3

\\x = ±\sqrt{3}\]

Answer 2

Thanks!