Question

4.x^2=110^2

Answer 1

\(4x^2=12100\)

\(x^2=3025\)

\(x=55\)

hoắc\(x=-55\)

\(D=b^2-4ac\)

\(\left(0\right)^2-\left(4.4.-12100\right)=193600\)

\(x_{1,2}=\frac{-b-\sqrt{D}}{2a}=\frac{-\sqrt{193600}+\left(0\right)}{8}\)

\(x=-55\)

Answer 2

4x^2=110^2

=>4x=110

x=110:4

x=27,5