giai phuong trinh
1, (x-2)(x-1)(x-8)(x-4)=4x^2
2, (x^2+5x+6)(x^2+20x+96)=4x^2
3, 3(x^2+2x-1)^2-2(x^2+3x-1)^2+5x^2=0
Giai phuong trinh sau: \(\frac{x^2+2x+2}{x+1}+\frac{x^2+8x+20}{x+4}=\frac{x^2+4x+6}{x+2}+\frac{x^2+6x+12}{x+3}\)
giai phuong trinh
c) \(\frac{4x}{x^2+4x+3}-1=6\left(\frac{1}{x+3}-\frac{1}{2x+2}\right)\)
d) \(\frac{3}{2x+1}=\frac{6}{2x+3}+\frac{8}{4x^2+8x+3}\)
Giai phuong trinh
\(\frac{7x}{x-1}-\frac{5x}{x+1}+\frac{x+21}{x^2-1}=0\)
\(\frac{x}{2x-6}+\frac{x}{2x+2}=\frac{2x^2}{x^2+2x-3}\) giai phuong trinh lop 8
Giai phuong trinh
a) (x+1)^4+(x-3)^4=0
b) x^4 + 2x^3 - 4x^2 -5x -6=0
giai phuong trinh:
a)2x(x+5)-(x-3)^2 = x^2 +6
b)(4x+7)(x-5)-3x^2=x(x-1)
giai phuong trinh:
(5x+5)/(x2-4x+6)+(6x+6)/(x2-5x+7)=17/2
giup mik nha moi nguoi,minh can gap bay gio! thank you! ^_^
1.tong tat ca cac nghiem cua phuong trinh : 3x4+5x3-x2-5x-2=0 la
2. tich tat ca cac nghiem cua phuong trinh 2x4+7x3-2x2-13x+6=0
