Tìm xx:

a,(x3).(x+3)(x2)2=6\left(x-3\right).\left(x+3\right)-\left(x-2\right)^2=6

b,(2x1)2(x+2)2(x+2).(x2)=4\left(2x-1\right)^2-\left(x+2\right)^2-\left(x+2\right).\left(x-2\right)=4

Các câu hỏi liên quan