Violympic toán 7
Các câu hỏi tương tự
Tìm x.
\(1,\dfrac{3}{2}\left(x-\dfrac{1}{3}\right)-\dfrac{1}{2}\left(x+\dfrac{1}{2}\right)=\dfrac{1}{4}\)
\(2,3\left(x-2\right)-4\left(x+2\right)=x+2\)
\(3,4x\left(x-1\right)+4x-2\left(x+1\right)=-2\)
\(4,x\left(x+2\right)-3\left(x-1\right)=3\left(x+1\right)\)
1/x+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)+(x+4)+1/(x+4)
-√x+3=-8=>x=?
-√x+3=-4=>x=?
-√x+3=-2=>x=?
-√x+3=-1=>x=?
-√x+3=1=>x=?
-√x+3=2=>x=?
-√x+3=4=>x=?
-√x+3=8=>x=?
hộ tui các chế ơi
Cho hai đa thức P( x ) = x mũ 2 cộng 5 x mũ 4 trừ 3 x mũ 3 cộng x mũ 2 cộng 4 x mũ 4 + 3 x mũ 3 - x + 5
Q(x) = x - 5 x mũ 3 trừ x mũ 2 trừ x mũ 4 + 4 x mũ 3 trừ x mũ 2 + 3 x - 1
1 tìm x biết
a, (x+1)^2 =169
b, (x+3)^3 = -1/27
c, (2x-4)^4= 1/265
d, (x-1/2) ^3 =1/-279
2 tìm x
a, 3<3^x <234
b, 8.16>2^x > hoặc = 4
c, 2019^x=1
d, x^2019=1
e, 5^x +5^x+2 =650
f, 3^-1 . 3^x + 5.3 ^x-1 =162
g, 32^-x .16^x =1024
c)5^x+1-5^x=20 c)2^x+2^x+4=544 c)4^2x+1+4^2x=80 c)3^2x+2+3^2x+1=108 c)7^x+3-7^x+1=16464
Tìm x biết:
a) 3./x/=x+12
b)/x/=2.x-1
c) /2.x-1/=x+4
d) /x-3/-x=7
e) /x-3/=x-1
f) /2.x-6/+5.x=9
g) /2.x-8/+4.x=10
h) /2.x-1/+3.x=5
a) 2 mũ 3 : |x-2| =2
b) | 2x + 1 | + | 5x -1 | + 7 mũ 4 = 49
c) | x mũ 3 ( x - 4 )= 5x mũ 2
d) | 2x - 5 | = 2 - x
e) x - | x + 1 | = 4
f) 3x + | 4x + 3 | = 5
Tìm x biết : a) \(\left|x^3-x-1\right|=x^3+x+1\)
b) \(\left|x^4+x^2+1\right|=x^2-x-1\)
TÌm nghiệm
a) 3x - (3 - 2x)
b) ( x +2 ) . 3 - 4x . 3
c) (x - 2 )(x-4)(1-7x)
d) 4x^2 - 1/4
e) -3x^2 + 48
g) 3.(1/2 - 1/3x)^3 - 1/9
m) 4x^3 + 5x^4
h) -x^3 + 1/64 x
k) (x^2 +1 ) ^2 + 3x(x^2 + 1 ) +2