Tìm x,biết
1, 2^3×5-(x+3^2)=10
2, 3^3-(x+24)=7
3, 7^2-(15+x)=5×2^2
4, 5^2-5 (4+x)=15
5, 15:(x+2)=(3^3+3)÷10
6, 20÷(x+1)=5^2+1)÷13
7, 320÷(x-1)=(5^3-52)=4+15
8, 260 ÷(x+4)=5 (2^5+5)-3 (3^2+2^2)
9, (2^2+3)(x-5)+14=5^2+124=2^2
Loga
Sinh Học lớp 12
