Các câu hỏi tương tự
Puong trinh chua an o mau:
Cho puong trinh 4x2 -25 +k2 +4kx=0 (an x)
a) Giai phuong trinh voi k=0
b) Giai phuong trinh voi k=-3
c) Tim cac gia tri cua k de phuong trinh nhan x=-2 lam nghiem
cho phuong trinh 2(x^2+m+1)=(1-m)(1+m) <an x>. voi =? thi phuong trinh luon co nghiem
co ghi cach giai
giai phuong trinh bang cach dat an
(x+1)(x+3)(x+5)(x+7)+15=0
cho phuong trinh (an x):(m-1)x +m^2 -1=0(1) a,giai phuong trinh (1) voi m=2 b, tim gia tri cua m sao cho phuong trinh (1) nhan x=3 lam nghiem
mk dang can gap .cam on truoc a
cho phuong trinh an x: \(\frac{x+a}{x+2}+\frac{x-2}{x-a}=2\)
a) giai phuong trinh vs a=4
b)Tim cac gtri cua a sao cho phuong trinh nhan x=-1 lam nghiem
x+1/9+ x+2/8=x+3/7 + x=4/6 . giai phuong trinh
giai bat phuong trinh x^3/x^2 -x/x-2 -2/x+2 >6
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:
a)2(x-2)+x-2=3(x-2)
b)4(1-x)+3x=1-x
c)3(x-2)+4(1-x)=-(6+x)