Tìm x, biết:

\(a.\left(2x-1\right)^2-\left(4x^2-1\right)=0\\ b.\left(x+2\right)^2-x\left(x-3\right)=2\\ c.\left(x-5\right)^2-x\left(x+2\right)=5\\ d.\left(x-1\right)^2+x\left(4-x\right)=11\\ e.\left(x-3\right)\left(x+3\right)=\left(x-5\right)^2\\ f.\left(2x+1\right)^2-4x\left(x-1\right)=17\\ g.\left(3x+1\right)^2-9x\left(x-2\right)=25\\ h.\left(3x-2\right)\left(3x+2\right)-9\left(x-1\right)x=0\\ i.\left(x+2\right)^2-\left(x-2\right)\left(x+2\right)=0\\ k.\left(x+2\right)^2-\left(x-3\right)\left(x+3\right)=-3\)

I think this report shows __that___ why we have to act now.

uninteresting

Cho P(x) = -6x^3-2x^2-2x+1

Tìm x biết P(x)=0.