Question

factorise25u2-15u+2​

Answer 1

25u²-15u+2

25u²-10u-5u+2

5u(5u-2)-1(5u-2)

(5u-1)(5u-2)

Answer 2

$25 {u}^{2} - 5u + - 10u + 2 = 0 \\ 5u(5u - 1) - 2(5u - 1) \\ 5u - 1(5u - 2)$

either 5u-1=0

u=1/5

OR

5u-2=0

u=2/5