PT<=>2x+6=-2x+14
<=>4x=8
<=>x=2
2(x+3)=x(2-4)+14
<=>2x+6=-2x+14
<=>2x+2x=14-6
<=>4x=8
=>x = 8/2=4
Các câu hỏi tương tự
giai gium tui dc k (x2 - 1)(x + 2)(x - 3) = (x - 1)(x2 - 4)(x + 5)
(x - 2)(3x + 5) = (2x - 4)(x + 1) giai gium mik dc k
GPT: x5-x4+3x3+3x2-x+1=0
giai chi tiet gium
giai gium minh bai toan :x^2+y^2+2xy+4>0
1. x2+y2-2xy -2x+2=0
2.(x+2)4+(x+8)4=272
3. (x-2)6+(x-4)6=64
giai pt . ghi cach giai gium minh. minh tick cho
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
X^2+4y^2-4xy-z^2+6z-9
Cac giai gium minh voi minh can gap
Giai bat phuong trinh
(x+1/x+1)*(x+2/x+1)=12/x
Nhanh gium nhe mk can gap rui
x mũ 3+5x mũ2 trừ 6x giai gium nha