Question

Решите уравнение (5x-19)(5x×19)=25x2в квадрате+19x

Answer 1

25х^2-95х + 95х-361-25х^2 - 19х=0

-19х=361

Х=-19

Answer 2

(5x-19)(5x×19)=100+19x (5x-19)(5x×19)-19x=100 5x×(5x×19)-19x=119 5x×95x-19x=119 5x×76x=119 X=-130,5