\(\left(2x+3y\right)^2+2\left(2x+3y\right)+1=\left(2x+3y+1\right)^2\)
\(\left(2x+3y\right)^2+2\left(2x+3y\right)+1=\left(2x+3y+1\right)^2\)
viet cac bieu thuc sau duoi dang binh phuong cua mot tong hoac mot hieu
xy^2+(2+xy^2)+10-6x+x^2
Viet bieu thuc sau duoi dang binh phuong cua mot tong:
2xy2 +x2y4 +1
Phan tich da thuc sau thanh nhan tu:
a) x2 -3x +2
b) 3x2 - 7x -10
c) 2x2 -5x -7
HELP ME!!!
CMR bieu thuc sau viet duoc duoi dang tong cac binh phuong cua hai bieu thuc
x2+2(x+1)2+3(x+2)2+4(x+3)2
Viet moi bieu thuc sau ve dang tong hoac hieu 2 binh phuong:
a) (x+y+4)(x+y-4)
b)(x-y+6)(x+y-6)
viet da thuc sau thanh tong cua 2 binh phuong
a, x^2+2y^2-2xy-2x+2
b, 2x^2-2x+13
c, 3x^2+2x+3
a/ Hieu cac binh phuong cua 2 so tu nhien chan lientiep la 8 . tim hai so ay
b/ tong cac binh phuong cua 2 so tu nhien le lien tiep laf 2594. tim hai so ay
c/ chung minh rang so 3599 duoc viet duoi dang tich cua 2 so tu nhien khac 1
1. viet cac bieu thuc sau duoi dang tong
a) (2x+3y)2 ; (0,01+xy)2
b) (x-2y).(x-2y) ; (56.64)
c) (x-y+z).(x+y+z)
d) (x+y+z).(x-y-z)
e) (x+1).(x-1)
Viet cac da thuc sau duoi dang tich :
a, \(100x^2-\left(x^2+25\right)^2\)
b, \(1+\left(x-y+5\right)^2-2\left(x-y+5\right)\)
c, \(\left(x^2+4y^2-5\right)^2-16\left(x^2y^2+2xy+1\right)\)
d, \(\left(x^2+8x-34\right)^2-\left(3x^2-8x-2\right)^2\)
1. tong binh phuong tac ca cac nghiem cua phuong trinh :x4(x-1)+(x-1)x3=0
2.gia tri lon nhat cua bieu thuc7x-2x2
3.nghiem nho nhat cua da thuc 11x-2x2-15