Các câu hỏi tương tự
B1:tìm x biết a, (-2+x^2)(x^2-2)(x^2-2)(x^2-2)(x^2-2)=1 b, (2x+3)(x-4)+(x-5)(x-2)=(3x-5)(x-4) c,(8x-3)(3x+2)-(4x+7)(x+4)=(4x+1)(5x-1) d, 2x^2+3(x-1)(x+1)=5x(x+1) e, (8-5x)(x+2)+4(x-2)(x+1)=(2+x)(2-x) f, 4(x-1)(x+5)-(x+2)(x+5)=3(x-1)(x+2)
1.Tìm x trong tỉ lệ thức
(1/3x):2/3=1 và 3/4 : 2/5
0,2:1 và 1/5 = 2/3 : (6x + 7 )
x-1/-15=-60/x-1
x-1/7=9/x-1
x-3/5-x=5/7
x-1/x+2=x-2/x+3
Bài 1:
a, (-2+x\(^2\))(x\(^2\)-2)(x\(^2\)-2)(x\(^2\)-2)(x\(^2\)-2)=1
b, (2x+3)(x-4)+(x-5)(x-2)=(3x-5)(x-4)
c, (8x-3)(3x+2)-(4x+7)(x+4)=(4x+1)(5x-1)
d,2x\(^2\)+3(x-1)(x+1)=5x(x+1)
e,(8-5x)(x+2)+4(x-2)(x+1)=(2+x)(2-x)
f, 4(x-1)(x+5)-(x+2)(x+5)=3(x-1)(x+2)
a, |x-1/2|=|3|
b, 2|x-1|+3|x-1|=5
c, |-2/3|.|2x-1|=4/3.|x-1|+1
d, |x-1|-x=-1
e, |3x-2|=|x-1|
f,|2x-1|+2x=1
g, 2|x-1/2|=|x+1|
h, 3|x-1/3|+5|3/x-1/5|=2
Tìm x, biếta)dfrac{1}{2}xx-dfrac{7}{3}dfrac{-5}{6}+dfrac{3}{4}xxb)dfrac{4}{5}xx-dfrac{6}{5}dfrac{1}{2}+dfrac{3}{2}xxc)dfrac{2}{5}x(3xx+dfrac{3}{4})1dfrac{1}{5}-dfrac{1}{3}xxd)2x(3xx
+dfrac{3}{4})+dfrac{4}{5}dfrac{1}{2}-2xx
Đọc tiếp
Tìm x, biết
a)\(\dfrac{1}{2}\)x\(x\)-\(\dfrac{7}{3}\)=\(\dfrac{-5}{6}\)+\(\dfrac{3}{4}\)x\(x\)
b)\(\dfrac{4}{5}\)x\(x\)-\(\dfrac{6}{5}\)=\(\dfrac{1}{2}\)+\(\dfrac{3}{2}\)x\(x\)
c)\(\dfrac{2}{5}\)x(3x\(x\)+\(\dfrac{3}{4}\))=\(1\dfrac{1}{5}\)-\(\dfrac{1}{3}\)x\(x\)
d)2x(3x\(x \)+\(\dfrac{3}{4}\))+\(\dfrac{4}{5}\)=\(\dfrac{1}{2}\)-2x\(x\)
a,(y/3-5)^2000=(y/3-5)^2008
b,(x-5)^2=(1-3x)^2
c,1/3*3^x+5*3^x-1=162
d, 2^x+2^x+3=144
e,(x-1)^3=(X-1)^4
g,(x-1)^x+1=(x-1)^x+2
nhanh nha đang cần gấp lắm đó!! ^.^
a,(y/3-5)^2000=(y/3-5)^2008
b,(x-5)^2=(1-3x)^2
c,1/3*3^x+5*3^x-1=162
d, 2^x+2^x+3=144
e,(x-1)^3=(X-1)^4
g,(x-1)^x+1=(x-1)^x+2
nhanh nha đang cần gấp lắm đó!! ^.^
TÌM X:
a) 5x-3=2x+1
b) 3.( x-5) - 5.(x+1)= 15
c) x-5/3 - x+2/5 = 1/2
d) 3x-7/2 = 5x-2/3
e) -2.(x-3) + 5.(x-1)= 3+x
f) x.(x-5)- x.(x-2)= 6-x
g) 1/3x-2=1/4x+4
2x + 1 / x(x+1) - 2x+3 / (x+1)(x+2) + 2x + 5 / (x+2)(x+3) = 5 / x(x+3)