tìm x biết

\(9\left(x+2\right)-3\left(x+2\right)=0\)

\(x\left(x+5\right)+\left(x-3\right)\left(x+5\right)=0\)\(3x^2+6x=0\)

\(2\left(2x-5\right)-3x=0\)

\(\left(x-1\right)^2+x\left(5-x\right)=0\)

\(\left(2x-3\right)\left(2x+3\right)-\left(x+5\right)^2-3\left(x-1\right)\left(x+2\right)\)=0

\(\left(2x-1\right)^2-45=0\)

\(2x^2-6x=0\)

giúp vs can gap

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