Tlng plisss jwb soalnya bsk di kumpulin plisss

a . 14x² + 3x - 2
(7x - 2)(2x + 1)

b. 12x² + 2x - 30
(4x - 6 )(3x + 5)

c. 18mn - 30m²np³
3mn (6 - 10mp³)

d. 3x²yz² - 9xy²z + 4xyz
xyz (3xz - 9y + 4)

3. 
t = 4x + 6
L = 10x² + 23x + 12

maka
L = a . t . 1/2
10x² + 23x + 12 = a (4x + 6)/2
10x² + 23x + 12 = a (2x + 3)
(2x + 3)(5x + 4) = a (2x + 3)
a = (5x + 4)