Datrys ar gyfer x
x\in \left(-\frac{5}{2},\frac{5}{2}\right)
Graff
Rhannu
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x^{2}<\frac{25}{4}
Ychwanegu \frac{25}{4} at y ddwy ochr.
x^{2}<\left(\frac{5}{2}\right)^{2}
Cyfrifo ail isradd \frac{25}{4} a chael \frac{5}{2}. Ailysgrifennwch \frac{25}{4} fel \left(\frac{5}{2}\right)^{2}.
|x|<\frac{5}{2}
Mae anghydraddoldeb ar gyfer |x|<\frac{5}{2}.
x\in \left(-\frac{5}{2},\frac{5}{2}\right)
Ailysgrifennwch |x|<\frac{5}{2} fel x\in \left(-\frac{5}{2},\frac{5}{2}\right).
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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