18.7 - 3.4^2

asked by guest
on Nov 29, 2024 at 5:23 am



You asked:

Evaluate the expression: \(18.7 - {3.4}^{2}\)

MathBot Answer:

\[18.7 - {3.4}^{2} = \frac{357}{50} = 7.14\]

\[\begin{aligned}18.7 - {3.4}^{2}& = 18 + \frac{7}{10} - \left(3 + \frac{4}{10}\right)^{2}\\& = 18 + \frac{7}{10} - \left(3 + \frac{2}{5}\right)^{2}\\& = 18 + \frac{7}{10} - \left(\frac{17}{5}\right)^{2}\\& = 18 + \frac{7}{10} - \frac{289}{25}\\& = \frac{187}{10} - \frac{289}{25}\\& = \frac{357}{50}\end{aligned}\]

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