Question

Which factor divides the expression
10x2 - 12x + 2​

Answer 1

$10 {x}^{2} - 12x + 2 \\ = 10 {x}^{2} - 10x - 2x + 2 \\ = 10x(x - 1) - 2(x - 1) \\ = (x - 1)(10 x- 2) \\ = 2(x - 1)(5x - 1)$

Hence,
2, (x+1), and (5x-1) divide the given expression.