Question

Решите уравнение
(3x-2)^2-(x-5)(8x+1)=x(x-10)
-6x+x^2+9=0
9y^2-1=0
(4+x)(4-x)-15=(x-1)^2+2

Answer 1

9х²-12х+4-8х²-х+40х+5=х²-10х
9х²-12х+4-8х²-х+40х+5-х²-10х=0
28х+9=0
28х=-9
х=-3 1/9