4.5*4.5

asked by guest
on Sep 19, 2024 at 10:28 pm



You asked:

Evaluate the expression: \(4.5 \cdot 4.5\)

MathBot Answer:

\[4.5 \cdot 4.5 = \frac{81}{4} = 20.25\]

\[\begin{aligned}4.5 \cdot 4.5& = \left(4 + \frac{5}{10}\right) \cdot \left(4 + \frac{5}{10}\right)\\& = \left(4 + \frac{1}{2}\right) \cdot \left(4 + \frac{5}{10}\right)\\& = \frac{9}{2} \cdot \left(4 + \frac{5}{10}\right)\\& = \frac{9}{2} \cdot \left(4 + \frac{1}{2}\right)\\& = \frac{9}{2} \cdot \frac{9}{2}\\& = \frac{81}{4}\end{aligned}\]

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