Решите
(10x + 14) x - (5x - 1)(2x + 3) = 4
Решите задачу:
(10x+14)x-(5x-1)(2x+3)=4 10x^2+14x-(10x^2+15x-2x-3)=4 10x^2+14x-10x^2-15x+2x+3-4=0 x-1=0 x=1