giai giup minh cau nay voi ạ : 2x(x^2+2)(x-2)=0
tim x biet :2*x-12*x=0. cac ban oi giup minh giai cau nay voi
2.x - 12.x = 0
=> 2 - 12 . x = 0
=> - 10.x = 0
=> x = 0 : ( - 10 )
=> x = 0
????
\(2\times x-12\times x=0\)
\(\left(2-12\right)\times x=0\)
\(-10\times x=0\)
\(x=0:\left(-10\right)\)
\(x=0\)
Vậy x = 0
cac ban giai giup minh cau nay voi
g) x(x-2)-x2 = 5x-7
H) 3x(x-7)+2(x-7)=0
g/ x(x-2)-x2=5x-7
\(\Leftrightarrow x^2-2x-x^2=5x-7\\ \Leftrightarrow7x=7\Leftrightarrow x=1\)
h/\(3x\left(x-7\right)+2\left(x-7\right)=0\\ \Leftrightarrow3x^2-19x-14=0\\ \)
\(\Leftrightarrow\left(x-7\right)\left(3x+2\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x=7\\x=-\frac{2}{3}\end{matrix}\right.\)
Giai giup minh cau nay voi minh cam on
1,tim x
a,2\(^{4-2x}\)=16\(^4\)
a) \(2^{4-2x}=2^{16}\)(biến đổi \(16^4\Rightarrow2^{16}\))
=> 4 - 2x = 16
2x = 4 - 16
2x = -12
x = -12 : 2
x = -6
giup giai cau nay voi
tim gia tri lon nhat
x2-2xy+y2+2x-10x+17
minh dang can gap lam.
ai giup mink ba cau nay voi a,|x-5|=|-3x+2| b,|x-5|+|x^2-25|=0 c,|2x-3|+|2x+4|=7
Giup minh cau nay voi
Tim x biet:x^3-x^2=0
x3-x2=0
x2(x-1)=0
Suy ra
x2=0 su ra x=0
x-1=0 suy ra x=1
3-x2 =0
3-x=0:2
3-x = 0
x= 3-0
x = 3
Giai phuong trinh giup minh 3 cau nay voi
a,\(3x\left(2-\sqrt{4}\right)=3\left(\sqrt{4}x+1\right)\)
b,\(\left(5-x\right).\left(\sqrt{3}+x\right)-5=0.\)
c,\(\left(x^2-2x\right)+\left(-4+8x\right)=0.\)
Tinh: 1/2N(x)=-x^3+2,5x^2-6+2x
Giai giup minh cau nay nhe.<3 <3<3
GIAI GIUP MINH VOI:????
(2x+2).(3-x) > hoac = 0