Tìm \(x\):
a,\(\left(x-3\right).\left(x+3\right)-\left(x-2\right)^2=6\)
b,\(\left(2x-1\right)^2-\left(x+2\right)^2-\left(x+2\right).\left(x-2\right)=4\)
Loga
Toán lớp 8
Tìm \(x\):
a,\(\left(x-3\right).\left(x+3\right)-\left(x-2\right)^2=6\)
b,\(\left(2x-1\right)^2-\left(x+2\right)^2-\left(x+2\right).\left(x-2\right)=4\)
