Problem : Factor 4x2 + 12x + 5.

(2x + 5)(2x + 1)

Problem : Factor 18x2 - 39x + 20.

(3x - 4)(6x - 5)

Problem : Factor 6x2 - 19x - 7.

(2x - 7)(3x + 1)

Problem : Factor 10x2 + x - 2.

(5x - 2)(2x + 1)

Problem : Factor 6x2 - 16x + 10.

2(x - 1)(3x - 5)

Problem : Factor 18x3 +3x2 - 6x.

3x(2x - 1)(3x + 2)