`5/6x+x-1/3x=-9/4`
`=>3/2x=-9/4`
`=>x=-9/4:3/2`
`=>x=-3/2`
Vậy `x=-3/2`
`5/6x+x-1/3x=-9/4`
`=>3/2x=-9/4`
`=>x=-9/4:3/2`
`=>x=-3/2`
Vậy `x=-3/2`
Tìm x biết :
a, 4.(18 - 5x) - 12.(3x - 7) = 15.(2x - 16) - 6(x + 14)
b, 5.(3x + 5) - 4.(2x - 3) = 5x + 3.(2x + 12) + 1
c, 2.(5x - 8) - 3.(4x - 5) = 4.(3x - 4) + 11
d, (3x + 2)(2x + 9) - (x + 2)(6x + 1) = (x + 1) - (x - 6)
e, (8x - 3)(3x + 2) - (4x + 7)(x + 4)= (2x + 1)(5x - 1) - 33
Cho f(x)+g(x)=6x^4-3x^2-5
f(x)-g(x)=4x^4-6x^3+7x^2+8x-9
Timf(x),g(x)
Cho f(x)+g(x)=6x^4-3x^2-5
f(x)-g(x)=4x^4-6x^3+7x^2+8x-9
Tìm f(x),g(x)
Tìm x:
a) 3x.(1 - 2x) + 6x^2 - 7x = 8.(1 - 2x) - 9
b) 2x.(1 + 3x) - 3x.(4 +2x) = 3x - 4
bài 2: cho đa thức
A(x)=5/6x mũ3 - 12/7x mũ2+5x+5/7x mux2 +1/6x mux3 - 3x+9
Cho f(x) + g(x) = 6x^4 - 3x^2 - 5
f(x) - g(x) = 4x^4 - 6x^3 + 7x^2 + 8x - 9
Tìm các đa thức f(x) và g(x)
1,Cho f(x)+g(x)=\(6x^4-3x^2-5\)
f(x)-g(x)=\(4x^4-6x^3+7x^2+8x-9\)
Timf f(x);g(x)
cho f(x)+g(x)=6x^4-3x^2-5
f(x)-g(x)=4x^4-6x^3+7x^2+8x-9
hãy tìm các đơn thưc f(x),g(x)
Tìm x,y,z, biết \(\frac{2x+1}{5}=\frac{3x-2}{7}=\frac{z+4}{9}=\frac{2x+3y-1}{6x}\)
a, 2x( 3x + 1 ) + 3x ( 4 - 2x ) = 7
b, 4(18 - 5x ) - 12( 3x - 7 ) = 15(2x - 16 ) - 6(x + 14 )
c, ( 3x + 2 ) ( 2x + 9 ) - ( x + 2 ) ( 6x + 1 ) = ( x + 1 ) - ( x - 6 )
Tìm x