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\( - 5 x ^ { 2 } = 10 x \Leftrightarrow \)

Ask by Rose Brooks. in Portugal
Feb 03,2025

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Answer

As soluções da equação são \( x = 0 \) e \( x = -2 \).

Solution

Para resolver a equação quadrática: \[ -5x^{2} = 10x \] **Passo 1:** Mova todos os termos para um lado da equação para igualar a zero. \[ -5x^{2} - 10x = 0 \] **Passo 2:** Fatore o termo comum. Neste caso, podemos fatorar \(-5x\): \[ -5x(x + 2) = 0 \] **Passo 3:** Aplique o princípio do produto zero, que afirma que se o produto de dois fatores é zero, então pelo menos um dos fatores deve ser zero. \[ -5x = 0 \quad \text{ou} \quad x + 2 = 0 \] **Passo 4:** Resolva cada equação separadamente. 1. Para \(-5x = 0\): \[ x = 0 \] 2. Para \(x + 2 = 0\): \[ x = -2 \] **Soluções da equação:** \[ x = 0 \quad \text{e} \quad x = -2 \]

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The Deep Dive

To solve the equation \( -5x^2 = 10x \), you can start by rearranging it to one side: \( -5x^2 - 10x = 0 \). Factoring out the common term gives you \( -5x(x + 2) = 0 \). Setting each factor equal to zero leads you to the solutions \( x = 0 \) and \( x = -2 \). Voilà! You’ve solved the equation. In the world of quadratic equations, recognizing the patterns is crucial. Whenever you see a polynomial set to zero, don’t hesitate to factor. It’s like going on a treasure hunt—plotting the factors helps you uncover the roots more efficiently than piecing together a long equation step-by-step! Happy hunting!

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