Các câu hỏi tương tự
Chung minh rang x2+5xy+2x-4xy-10y+14 >0 voi moi x,y
phan tich da thuc thanh nhan tu :
5x^2 + 5xy - x - y
7x - 6x^2 - 2
phan tich thanh nhan tu
(X+Y+Z)^3-X^3-Y^3-Z^3
lam giup minh vơi ai nhanh minh tich cho
phan tich da thuc thanh nhan tu (xy+1)^2 -(x-y)^2 ai giup minh voi
phan tich da thuc thanh nhan tu (x^2+xy)^2-(y^2+xy)^2
Ai giup minh voi a
Bai 1: Tim x
a) 13x^2-15x-2=0
b)x^4-4x^2+3=0
c) (5x-2)^2+29x-(3x+1)^2=-11x
d) 4(x-2)^2-27(x-2)-7=0
Bai 2: Phan tich da thuc thanh nhan tu
a) 9x^2-25y^2+10y-1
b) (x-2)(x+2)(x^2-10)-72
c) x^3+y(1-3x^2)+x(3y^2-1)-y^3
d) 2x^2-5xy+2y^2
e) x^3-5x^2+3x+9
g) (x^2+3x+2)(x^2+7x+12)+1
h) x^8+x^7+1
phan tich thanh nhan tu:
\(x^2+6y^2+5xy+4x+7y-5\)
Ai rảnh giúp vs
a)x^2-5x+2x-10
b)x^2-7x-2x+14
c)x^3+8+5xy+10y
d)x^4+64+16x^2-16x^2
phan tich thanh nhan tu
a) 9x2+6x-8
b)x2-7xy +10y2
c) x8+x7+1