\(=x^2+6x+9-x^2+9=6x+18=6.\left(x+3\right)\)
\(=x^2+6x+9-x^2+9=6x+18=6.\left(x+3\right)\)
phân tích ra thừa số nguyên tố
a,6x^2-11x+3 b,2x^2+3x-27 c,2x^2-5xy+3y^2 d,2x^2-5xy-3y^2
e,x^3+2x-3 f,x^3-7x+6 g,x^3+5x^2+8x+4 h,x^3-9x^2+6x+16
j,x^3-x^2-4 k,x^3-x^2-x-2 l,x^3+x^2-x+2 m,x^3-6x^2-x+30
1. x^2-y^2-2x+2y 2. x^3-x+3x^2y+3xy^2+y^3-y. 3. 4x^4y^4+1. 4. x^2-2x-4y^2-4y. 5.x^3-x^2-x+1. 6.x^2y-x^3-9y+9x. 7.x^3-2x^2+x-xy^2. 8.x^2-2x-4y^2-4y.
1, x^6 - y^6
2, x^3 - 9x^2 + 11x - 21
3, y(x-2z)^2 + 8xyz + x(y-2z)^2 - 2z(x+y)^2
4, x^2y + xy^2 + x^2z + xz^2 + y^2z + yz^2 + 2xyz
5, ( x^2 + y^2 )^3 + (z^2 - x^2 )^3 - ( y^2 + z^2 )^3
6, ( x+y+z)^3 - x^3 - y^3 - z^3
rút gọn các bt sau:
(x-8)(x^2-2x+9)+(x+1)^3
(2x-1)^2-3(x-1)(x+2)-(x-3)^2
2(x+2)(x-2)+(x+3)(2x-1)
(x-2)(2x-1)-3(x+1)^2-4x(x+2)
phân tích ra thừa số nguyên tố
a,6x^2-11x+3
b,2x^2+3x-27
c,2x^2-5xy+3y^2
d,2x^2-5xy-3y^2
e,x^3+2x-3
f,x^3-7x+6
g,x^3+5x^2+8x+4
h,x^3-9x^2+6x+16
j,x^3-x^2-4 k,x^3-x^2-x-2
l,x^3+x^2-x+2
m,x^3-6x^2-x+30
a) x^2+9x=0
b)x^3+4x^2+4x=0
c)(x-5)^2-16=0
d)3(x+2)-x^2-2x=0
e)(x+2)^3-x^2(x+6)=4
g)x^2+5x+6=0
1 phân tích các đa thức sau thành nhân tử
a. 2 x^ 3 -5 x^ 2 + 8 x - 3
b. 3 x^3 - 14 x^ 2 + 4 x + 3
c. 12 x ^2 + 5 x - 12 y^ 2+12 y - 10 x y - 3
Phân tích đa thức thành nhân tử
1) x^3 - 7x + 6
2) x^3 - 9x^2 + 6x + 16
3) x^3 - 6x^2 - x + 30
4) 2x^3 - x^2 + 5x + 3
5) 27x^3 - 27x^2 + 18x - 4
6) x^2 + 2xy + y^2 - x - y - 12
7) (x + 2)(x +3)(x + 4)(x + 5) - 24
8) 4x^4 - 32x^2 + 1
9) 3(x^4 + x^2 + 1) - (x^2 + x + 1)^2
10) 64x^4 + y^4
11) a^6 + a^4 + a^2b^2 + b^4 - b^6
12) x^3 + 3xy + y^3 - 1
13) 4x^4 + 4x^3 + 5x^2 + 2x + 1
14) x^8 + x + 1
15) x^8 + 3x^4 + 4
16) 3x^2 + 22xy + 11x + 37y + 7y^2 +10
17) x^4 - 8x + 63
đúng nhiều nhất sẽ đc tick
a) x(2x - 1) - (x - 2)(2x + 3) = 5
b) (x - 3)2 - 25 = 0
c) (x - 1) (2 - x) + (x + 3)2 = 4 - 2x