\(x^4+x^3+3x^2+2x+2=0\) (giai phuong trinh)
Giai phuong trinh:
c1. x^4+x^3-8x^2-9x-9=0
c2. x^4+2x^3-3x^2-8x-4=0
c3. x^4 +2x^3-3x^2-8x-4=0
giup minh bai nay:
giai phuong trinh:
x(x+1)(x-1)(x+2)=24
2x(8x-1)^2(3x+2)(2x+1)=3
thanks!
Giai phuong trinh
a,x^2-3x+2+|x-1|=0
Cho phuong trinh(an x): 4*x^2-25+k^2+4*k*x=0. Tim cac gia tri chua k sao cho phuong trinh nhan x=-2 lam nghiem.
1.Giải các phuong trình sau:
A. 5x -20 \(\le\)0
B.3x+7 > -7x+2
C. -9x-5 <4x +21
D. 3(2x-5) >8x-13
E. 2(3x-5) \(\ge\)5(2x+6)
F.\(\frac{2x-3}{4}\)\(\le\)\(\frac{3x+1}{6}\)
H.2x+3(x-3)\(\ge\)10x-(3x+2)
Help me
5x - 4(6-x)(x + 3) = (4-2x)(3-2x) + 2
(x - 1)3 - (3x + 2)(-12) = (x2 + 1)(x - 2) - x2
(3x -1)2 - (x +3)(2x-1) = 7(x + 1)(x -2) -3x
câu 1:giải các pt và bpt sau: a,17x - 5(x+3)= 2x + 5 b,3/x+2 - 5/x-2 = 11x + 23/(x+2)(x-2) c,5x + 7 ≥ 3(x-1) d,3x-1/x+1 = -2/5 e,(2x-1)(2x+1)= 4x2 + 3x + 2 f,x-3^3 -7+3x g,7x-5 < 2(4x-1)+7
a) (x + 3)(x - 5) + (x + 3)(3x - 4) = 0
b) 2x(2x - 3) = (3 - 2x)(2 - 5x)
c) 2x3 + 6x2 = x2 + 3x
d) x2 - 5x + 6 = 0
e) (2x + 5)2 = (x + 2)2
