8bkuadrat-14b+5 berapa jawaban

8b^2 – 14b + 5 = 0 /?
(8b-10)(8b-4) : 8
2(4b-5) 4(2b-1) : 8
(4b-5)(2b-1)

4b=5
b = 5/4

atau

2b=1
b=1/2