apa jawaban dari soal diatas?

Bab Persamaan Kuadrat
Matematika SPMB

2px² - 4px + 5p = 3x² + x - 8
2px² - 3x² - 4px - x + 5p + 8 = 0
(2p - 3) x² + (-4p - 1) x + 5p + 8 = 0
a = 2p - 3
b = -4p - 1
c = 5p + 8

x1 . x2 = 2 (x1 + x2)
c/a = 2 . (-b/a)
(5p + 8)/(2p - 3) = - 2 (-4p - 1)/(2p - 3)
*** coret 2p - 3 ***

5p + 8 = 8p + 2 
8p - 5p = 8 - 2
3p = 6
p = 6 : 3
p = 2

x1 + x2 = -b/a
x1 + x2 = -(-4p - 1)/(2p - 3)
x1 + x2 = (4 . 2 - 1) / ( 2 . 2 - 3)
x1 + x2 = 7/1
x1 + x2 = 7

jawabannya B