Question

решите уравнение
(8x+3)(2x+5)=15

Answer 1

(8х+3)(2х+5)=15
16х²+40х+6х+15=15
16х²+46х=0
2х*(8х+23)=0
х1=0

8х+23=0
8х=-23
х=-23/8
х2=-2 7/8