Pregunta
I CAN WDITE AND EVAIUATE NUMERICAI EXPDESSIONS INVOIVING WHOLE NUMPER EXPONENTS. 23. 22. \( \left(12^{2}-20\right)-18 \) \[ 15^{2}-(3 \cdot 5)+7 \]
Ask by Crawford Todd. in the United States
Feb 25,2025
Solución de inteligencia artificial de Upstudy
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\( (12^{2}-20)-18 = 106 \)
\( 15^{2}-(3 \cdot 5)+7 = 217 \)
Solución
Calculate or simplify the expression \( (12^{2}-20)-18 \).
Calculate the value by following steps:
- step0: Calculate:
\(\left(12^{2}-20\right)-18\)
- step1: Subtract the numbers:
\(124-18\)
- step2: Subtract the numbers:
\(106\)
Calculate or simplify the expression \( 15^{2}-(3 \cdot 5)+7 \).
Calculate the value by following steps:
- step0: Calculate:
\(15^{2}-\left(3\times 5\right)+7\)
- step1: Multiply the numbers:
\(15^{2}-15+7\)
- step2: Evaluate the power:
\(225-15+7\)
- step3: Calculate:
\(217\)
The results of the given expressions are:
1. \( \left(12^{2}-20\right)-18 = 106 \)
2. \( 15^{2}-(3 \cdot 5)+7 = 217 \)
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Simplifique esta solución Beyond the Answer
Let's evaluate the first expression \((12^{2}-20)-18\). First, calculate \(12^{2}\), which is \(144\). Then, subtract \(20\) from \(144\) to get \(124\). Finally, subtract \(18\) from \(124\), resulting in \(106\). So, \((12^{2}-20)-18 = 106\). Now, for the second expression \(15^{2}-(3 \cdot 5)+7\), start with \(15^{2}\), equal to \(225\). The term \(3 \cdot 5\) gives \(15\). So, \(225 - 15 + 7\) can be calculated step by step: \(225 - 15\) is \(210\) and \(210 + 7\) equals \(217\). Hence, \(15^{2}-(3 \cdot 5)+7 = 217\).
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