Các câu hỏi tương tự
tìm x, y biết
a) \(x^2+2y^2+2xy-2x+2=0\)
b) \(2x^2-8x+y^2+2y+9=0\)
1, Tìm x, y biết:a, 2x2 - 8x + y2 + 2y + 9 0b, x2 + y2 + x - xy + 1/2 0c, x2 - 4xy + 92 + 9 2xy + 6x - x2d, 5x2 + 5y2 + 8xy + 2y - 2x + 2 0e, 4x2 + 13y2 +12xy + 4x - 2y + 5 0f, x2 + 2y2 - 2xy + 2x + 2 - 4y 0g, 8x3 + (x + 8)2 8(x + 2)(x2 - 2x + 4)h, (3x +1)(9x2 + 1 - 3x) - (3 - x)2 (3x - 2)3i, 2x2 + 5y2 - 4xy - 4x - 14y + 29 0j, 4x2 + 9y2 - 12x - 32y - 2xy + 44 0v
Đọc tiếp
1, Tìm x, y biết:
a, 2x2 - 8x + y2 + 2y + 9 = 0
b, x2 + y2 + x - xy + 1/2 = 0
c, x2 - 4xy + 92 + 9 = 2xy + 6x - x2
d, 5x2 + 5y2 + 8xy + 2y - 2x + 2 = 0
e, 4x2 + 13y2 +12xy + 4x - 2y + 5 =0
f, x2 + 2y2 - 2xy + 2x + 2 - 4y = 0
g, 8x3 + (x + 8)2 = 8(x + 2)(x2 - 2x + 4)
h, (3x +1)(9x2 + 1 - 3x) - (3 - x)2 = (3x - 2)3
i, 2x2 + 5y2 - 4xy - 4x - 14y + 29 = 0
j, 4x2 + 9y2 - 12x - 32y - 2xy + 44 = 0v
Tìm x, biết:
a) (x+2)2 + (x-3)2 = 2x (x+7)
b) (x+1)3 + (x-1)3 = 2x3
c) x3 - 3x2 + 3x - 126 = 0
d) x2 + y2 - 2x + 4y + 5 = 0
e) 2x2 + 8x +y2 - 2y + 9 = 0
tính
a)6x^3y-8x^2y^2+4xy
b)x^2-4x+xy-4y
c)x^2-y^2-6x+9
tìm x
a)x^2-2x-3=0
a)biết 8x^3+12x^2y+6xy^2+y^3=27
tính x(2x+y)+xy+1/2y
b) cho x^2+y^2+z(x-y+1)=0
tính x+y
c) cho a+b+c=9,a^2+b^2+c^2=53
tính ab, ac, bc
1, Tìm x, y biết:a, 2x2 - 8x + y2 + 2y + 9 0b, x2 + y2 + x - xy + 1/2 0c, x2 - 4xy + 92 + 9 2xy + 6x - x2d, 5x2 + 5y2 + 8xy + 2y - 2x + 2 0e, 4x2 + 13y2 +12xy + 4x - 2y + 5 0f, x2 + 2y2 - 2xy + 2x + 2 - 4y 0g, 8x3 + (x + 8)2 8(x + 2)(x2 - 2x + 4)h, (3x +1)(9x2 + 1 - 3x) - (3 - x)2 (3x - 2)3i, 2x2 + 5y2 - 4xy - 4x - 14y + 29 0j, 4x2 + 9y2 - 12x - 32y - 2xy + 44 0
Đọc tiếp
1, Tìm x, y biết:
a, 2x2 - 8x + y2 + 2y + 9 = 0
b, x2 + y2 + x - xy + 1/2 = 0
c, x2 - 4xy + 92 + 9 = 2xy + 6x - x2
d, 5x2 + 5y2 + 8xy + 2y - 2x + 2 = 0
e, 4x2 + 13y2 +12xy + 4x - 2y + 5 =0
f, x2 + 2y2 - 2xy + 2x + 2 - 4y = 0
g, 8x3 + (x + 8)2 = 8(x + 2)(x2 - 2x + 4)
h, (3x +1)(9x2 + 1 - 3x) - (3 - x)2 = (3x - 2)3
i, 2x2 + 5y2 - 4xy - 4x - 14y + 29 = 0
j, 4x2 + 9y2 - 12x - 32y - 2xy + 44 = 0
3 tháng 1 2023 lúc 20:21
Bài 1: Phân tích đa thức thành nhân tử
a)\(12xy^2-8x^2y\)
b)\(3x+3y-x^2-xy\)
c)\(x^2-6y-y^2+9\)
bài 2: tìm x
a) \(2x^2-8+x\left(3-2x\right)=15\)
b)\(x^2-9-2\left(x+3\right)=0\)
c) \(7x+x^2=30\)
Giusp mik vs
Mai mik nộp rồi
Tìm x,y,z
\(2x^2+2y^2+z^2+25-6y-2xy-8x+2z\left(y-x\right)=0\)
Tìm x,y,z
a) (x-3)^3-(x-3)(x^2+3x+9)+9(x+1)^2=15
b) (x^2-2)^2+4(x-1)^2-4(x^2-2)(x-1)=0
c) x^2+y^2+z^2= 4x-2y+6z-14
d) 8x^3-12x^2+6x-1=0
e) x^2+5y^2-4xy-8y+2x+5=0
f) x(x-5)(x+5)-(x-2)(x^2+2x+4)=3