Các câu hỏi tương tự
Tìm x biết :
a/ (0,4x - 2) - (1,5x +1) -(-4x-0,8)=3,6
Tìm x biết
(0,4x-x) - (4,5x+1) - (-4x-0,8) =3,6
AL
1 tháng 5 2022 lúc 9:23
cho 2 da thuc :f(x)=3x^3 - 2x^2 + x + 5
g(x)=3x^2 + ax + b
tim a,b sao cho f(x)=(x-1)*g(x)
moi nguoi giai giup em voi
f(x) = 2 (x^3 - x) + x^2 - 3x + 3 - x^3
a) Thu gon hai da thuc tren roi xep theo luy thua giam dan cua bien
b) Tinh f(-1);g (1/2)
c) Tim f(x) + g(x);f(x) - g(x)
d) Tim gia tri cua x de f(x) = g(x) (giup mk voi mk dang can gap)
Bai 1 : Tinh gia tri cua bieu thuc sau tai x=6 y=15
a, 3(x+y) b, 2(2x+y) c, x/2 d, 2(y2-20) e, 3xy : 10 f, 5(x+y+1)
giup tui voi TT
Tim x biet 1+1/2(1+2)+1/3(1+2+3)+...+1/x(1+2+3+...+x)=115
Giup toi voi
Giup minh voi x:1/2=1/7-1/4x=1/6
Bài 1:Tìm xa, dfrac{x}{6}dfrac{7}{3}b,dfrac{20}{x}dfrac{-12}{15}c,dfrac{-15}{35}dfrac{27}{x}d,dfrac{dfrac{4}{5}}{1dfrac{2}{5}}dfrac{2dfrac{2}{5}}{x}e,dfrac{x}{1dfrac{1}{4}}dfrac{1dfrac{1}{5}}{2}f,dfrac{dfrac{1}{2}}{1dfrac{1}{4}}dfrac{x}{3dfrac{1}{3}}Bài 2:Tìm xa,3x:2,7dfrac{1}{3}:2dfrac{1}{4}b,3:0,4x1:0,01c,4,5:0,32,25:0,1xd,x:27-2:3,6Bài 3:Tìm xa,1,35:0,21,25:0,1xb,3,8:2xdfrac{1}{4}:2dfrac{2}{3}c,3dfrac{1}{3}:2,40,35x:0,35d,1dfrac{1}{3}:0,8dfrac{2}{3}:0,1x ...
Đọc tiếp
Bài 1:Tìm x
a, \(\dfrac{x}{6}=\dfrac{7}{3}\)
b,\(\dfrac{20}{x}=\dfrac{-12}{15}\)
c,\(\dfrac{-15}{35}=\dfrac{27}{x}\)
d,\(\dfrac{\dfrac{4}{5}}{1\dfrac{2}{5}}=\dfrac{2\dfrac{2}{5}}{x}\)
e,\(\dfrac{x}{1\dfrac{1}{4}}=\dfrac{1\dfrac{1}{5}}{2}\)
f,\(\dfrac{\dfrac{1}{2}}{1\dfrac{1}{4}}=\dfrac{x}{3\dfrac{1}{3}}\)
Bài 2:Tìm x
a,\(3x:2,7=\dfrac{1}{3}:2\dfrac{1}{4}\)
b,\(3:0,4x=1:0,01\)
c,\(4,5:0,3=2,25:0,1x\)
d,\(x:27=-2:3,6\)
Bài 3:Tìm x
a,\(1,35:0,2=1,25:0,1x\)
b,\(3,8:2x=\dfrac{1}{4}:2\dfrac{2}{3}\)
c,\(3\dfrac{1}{3}:2,4=0,35x:0,35\)
d,\(1\dfrac{1}{3}:0,8=\dfrac{2}{3}:0,1x\)
GIÚP MÌNH VỚI NHA
1) \(3^x+3^{x+2}=810\)
2) \(\left(\dfrac{2}{3}x-1\right).\left(0,4x+5\right)=0\)