a: \(=\dfrac{2x\left(x+1\right)\left(x-2\right)^2}{x\left(x-2\right)\left(x+2\right)\left(x+1\right)}=\dfrac{2\left(x-2\right)}{x+2}=\dfrac{2\left(\dfrac{1}{2}-2\right)}{\dfrac{1}{2}+2}=2\cdot\dfrac{-3}{2}:\dfrac{5}{2}=-3\cdot\dfrac{2}{5}=-\dfrac{6}{5}\)
b: \(=\dfrac{x\left(x^2-xy+y^2\right)}{\left(x+y\right)\left(x^2-xy+y^2\right)}=\dfrac{x}{x+y}=\dfrac{-5}{-5+10}=\dfrac{-5}{5}=-1\)
5x^2-5y^2-x+y
nhom hang tu nhe,giai that chi tiet
x^2-9xy+20y^2
4x^2(x-y)-x-y
16+ty^2+6xt-9t+x^2
nhom hang tu nhe,giai that chi tiet
chung minh dt
a)(x+y)2-y2=x.(x+2y)
b)(a+b)-(a-b).3=2y.(a2+3b2)
GIAI CHI TIET GIUP MINH NHE !
so sanh a va b trong truong hop sau:
5a+2<5b-1
cac bn giup minh voi
giai chi tiet mot chut nhe
thu nam kiem ta rui
lam on di
a) a4-4
b)x2-6x+8
c) x2+8x+15
d)x2-7x+16
e) x4+4x-5
Giai chi tiet nhe
giai chi tiet giup mik
5-(6-x) = 4(3-2x)
co loi giai chi tiet giup minh
https://hoc24.vn/cau-hoi/giai-pt-saudfracx193dfracx135dfracx77dfracx19giai-chi-tiet-giup-minh-nheee.7541725494376
4/x+2 + (-3)/x-2 + 12/x^2-4 giai chi tiet ho mk !
giai phuong trinh
(x^2 + 1)^2 + 3x(x^2 + 1) + 2x^2 = 0
(x^2 - 9)^2 = 12x + 1
giai chi tiet gium nha
