Question

g) (4x-5)(5/4x-2)=0

h) 1/4-(2x+1/2)mũ 2=0

Answer 1

g)\(=>\left[{}\begin{matrix}4x-5=0\\\dfrac{5}{4}x-2=0\end{matrix}\right.=>\left[{}\begin{matrix}4x=5\\\dfrac{5}{4}x=2\end{matrix}\right.=>\left[{}\begin{matrix}x=\dfrac{5}{4}\\x=\dfrac{8}{5}\end{matrix}\right.\)

h)

\(=>\left(2x+\dfrac{1}{2}\right)^2=\dfrac{1}{4}=>\left[{}\begin{matrix}2x+\dfrac{1}{2}=\dfrac{1}{2}\\2x+\dfrac{1}{2}=-\dfrac{1}{2}\end{matrix}\right.\)

\(=>\left[{}\begin{matrix}2x=0\\2x=-1\end{matrix}\right.=>\left[{}\begin{matrix}x=0\\x=-\dfrac{1}{2}\end{matrix}\right.\)