4.5 squared
You asked:
Evaluate the expression: \({4.5}^{2}\)
MathBot Answer:
\[{4.5}^{2} = \frac{81}{4} = 20.25\]
\[\begin{aligned}{4.5}^{2}& = \left(4 + \frac{5}{10}\right)^{2}\\& = \left(4 + \frac{1}{2}\right)^{2}\\& = \left(\frac{9}{2}\right)^{2}\\& = \frac{81}{4}\end{aligned}\]