100 - 20 ÷ 5 + 3 × (2 + 3)² - 15 = ?
You asked:
Evaluate the expression: \(100 - \frac{20}{5} + 3 {\left( 2 + 3 \right)}^{2} - 15\)
MathBot Answer:
\[100 - \frac{20}{5} + 3 {\left( 2 + 3 \right)}^{2} - 15 = 156\]
\[\begin{aligned}100 - \frac{20}{5} + 3 {\left( 2 + 3 \right)}^{2} - 15& = 100 - 4 + 3 \cdot \left(2 + 3\right)^{2} - 15\\& = 100 - 4 + 3 \cdot 5^{2} - 15\\& = 100 - 4 + 3 \cdot 25 - 15\\& = 100 - 4 + 75 - 15\\& = 96 + 75 - 15\\& = 171 - 15\\& = 156\end{aligned}\]