baif1
1)\(x^2=0\)
2)\(x^2=1\)
3)\(x^2=3\)
4)\(x^2=6\)
5)\(x^2=7\left(x>0\right)\)
6)\(x^2=8\left(x< 0\right)\)
7)\(\left(x+1\right)^2=1\)
8)\(\left(x-2\right)^2=4\)
9)\(\left(2x+1\right)^2=9\)
10)\(\left(1-2x\right)^2=25\)
11)\(3\cdot\left(x+2\right)^2=125\)
12)\(4\cdot\left(2x+1\right)^2+5=41\)
13)\(45-2\cdot\left(x-5^2\right)=27\)
14)\(132-5\cdot\left(2x+1\right)^2=-113\)
15)\(253-7\cdot\left(1-3x\right)^2=78\)
cac ban nho lam nhanh giup minh voi minh dang can gap
dễ thế mà ko biết làm ak!
1, x2 = 0
=> x=0
2,x2=1
=> x= 1 hoặc x=-1
3,x2=3
=>\(x=\sqrt{3}\)
4,x2=6
=>\(x=\sqrt{6}\)
5,x2=7
=>\(x=\sqrt{7}\)