5x 2 1 6x 4x 2. X3+2x2-5x-6 0. 3x^2-x^3=0. (-X-7)^5(4-2x)(x-3)^2<0. 2x 4-7x 2+5 0. 4x+5=2x+3(5x+6). X2/x2-4=x-6/4-x2. 2x2=4 2x3=6. X-4/X-6 2. 2^X+2^1-X=3. X-1<3x+2. 5x^2=3x+2. 2^X=3^X. X 2 − ( X − 4 ) ( X + 4 ) = 2 X ответ. Y = –2x^2 + 4x – 1 уравнение