Pregunta
Perform the operation. \( \left(7 x^{2}-4\right)-\left(3 x^{2}-5 x+1\right)= \)
Ask by Lyons Peters. in the United States
Jan 28,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
\( 4x^{2} + 5x - 5 \)
Solución
To perform the operation \( \left(7 x^{2}-4\right)-\left(3 x^{2}-5 x+1\right) \), let's follow these steps:
1. **Distribute the Negative Sign:**
When subtracting the second polynomial, distribute the negative sign to each term inside the parentheses:
\[
7x^{2} - 4 - 3x^{2} + 5x - 1
\]
2. **Combine Like Terms:**
- **Combine \( x^{2} \) terms:**
\[
7x^{2} - 3x^{2} = 4x^{2}
\]
- **Combine \( x \) terms:**
\[
5x \quad (\text{Only one } x \text{ term})
\]
- **Combine constant terms:**
\[
-4 - 1 = -5
\]
3. **Write the Simplified Expression:**
Putting it all together:
\[
4x^{2} + 5x - 5
\]
**Final Answer:**
\[
\boxed{4x^{2} + 5x -5}
\]
Respondido por UpStudy AI y revisado por un tutor profesional
Como
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Bonus Knowledge
To perform the operation, we need to distribute the negative sign across the second expression and then combine like terms. Starting with the original equation: \[ (7x^2 - 4) - (3x^2 - 5x + 1) \] Distributing the negative sign gives: \[ 7x^2 - 4 - 3x^2 + 5x - 1 \] Now, combine like terms: 1. For \(x^2\) terms: \(7x^2 - 3x^2 = 4x^2\) 2. For \(x\) terms: \(5x\) (only one term) 3. For constant terms: \(-4 - 1 = -5\) Putting it all together, we get: \[ 4x^2 + 5x - 5 \] So the final result is: \[ 4x^2 + 5x - 5 \]
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