\(\left(5x-\frac{2}{3}\right)-\frac{2x^2-x}{2}\ge\frac{x\left(1-3x\right)}{3}-\frac{5x}{4}\)
<=> \(\frac{60x-8-6\left(2x^2-x\right)}{12}\ge\frac{4x\left(1-3x\right)-15x}{12}\)
<=> \(60x-8-12x^2+6x\ge4x-12x^2-15x\)
<=> \(47x\ge8\)
<=> \(x\ge\frac{8}{47}\)
Giup em voi a
Giai cac bat phuong trinh sau va bieu dien tap nghiem cua bat phuong trinh tren truc so:
a. 2(3x-1)-2x<2x-1
b. 4x-8≥3(3x-2)+4-2x
c. 3(x-2)(x+2)<3x²+x
d. (x+4)(5x-1)>5x²+16x+2
giai phuong trinh sau x^5-5x^4+4x^3+4x^2-5x+1=0
bài 1 : giai các phuong trinh sau :
a, (9x^2-4) (x+1) = (3x+2) (x^2-1)
b, x^4+ x^3 +x +1=0
c,x^5 - 5x^3 +4x=0
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 bat phuong trinh : x2-5x+6>=0
giai phuong trinh (x2 + 3x-4)3 + (2x2-5x+3)3 = (3x2 -2x-1)3
Giai phuong trinh, bat phuong trinh sau:
x-3/x-2 + x-2/x-4 = 16/5x-4/5 - x + 4 > x/3 - x-2/2 Giai giup minh nhe. Cam on rat nhieu.Giai phuong trinh
a) (x+1)^4+(x-3)^4=0
b) x^4 + 2x^3 - 4x^2 -5x -6=0
giai cac phuong trinh sau :
a, 1/x^2+5x+4+1/x^2+11x+28+1/x^2+17x+70=3/6x-2005
b, x+1/x-1+x-2/x+2+x-3/x+3+x+4/x-4=4
c, 1/4x-2006+1/5x+2004=1/15x-2007-1.6x-2005
d, 4x+16/x+6-3/x+1=5/x+3+7/x+5