🧮 algebra

1. The problem is to solve the equation $2x + 3 = 11$ for $x$. 2. The formula used here is to isolate $x$ by performing inverse operations. We subtract 3 from both sides and then d

1. **State the problem:** Calculate the value of the expression $$\frac{12}{39} \times \frac{65}{28} \times \frac{21}{10} - \sqrt{\frac{25}{36}}$$. 2. **Recall formulas and rules:*

1. Planteamos el problema: Encontrar el valor de $a$ en la ecuación cuadrática $$x^2 - (2a + 4)x + a^2 + 8 = 0$$ sabiendo que una raíz es el triple de la otra. 2. Sea $r$ una raíz

1. Planteamos el problema: Calcular el doble producto de las raíces de los pares de cuadrados perfectos dados. 2. Recordemos que el doble producto de las raíces $a$ y $b$ es $2ab$.

1. Problema: Dividir el polinomio $x^3 + 8x^2 + 6x + 1$ entre $x + 5$. 2. Fórmula y regla: Para dividir polinomios, usamos la división sintética o larga. Aquí usaremos división lar

1. The problem is to simplify the expression \(g1\).\n2. Since \(g1\) is a single term with no operations, it is already in its simplest form.\n3. There are no formulas or rules ne

1. **Problem Statement:** We have three functions defined as:

1. **State the problem:** Find the composite function $gf(x)$, which means applying $f$ first, then $g$ to the result. 2. **Recall the functions:**

1. **State the problem:** Simplify the expression $$\frac{k^2 - 17k + 39}{k^2 - 3k - 10} + \frac{3}{k - 5}$$. 2. **Factor the polynomials:**

1. **State the problem:** Simplify the expression $$\frac{2m - 10}{m^2 - 5m - 24} + \frac{4m + 28}{m^2 - 5m - 24}$$ where both fractions have the same denominator. 2. **Formula and

1. **State the problem:** Solve the equation $x \times 5 = 40$ to find the value of $x$. 2. **Formula and rules:** To isolate $x$, divide both sides of the equation by 5. The divis

1. **State the problem:** Simplify the expression $$\frac{a}{a^2 + 3a - 18} - \frac{1}{a^2 - 3a}$$. 2. **Factor the denominators:**

1. **State the problem:** Simplify or factor the expression $10a^3b^4 - 15a^4b^6 + 20a^2b^7$. 2. **Identify the common factors:** Look for the greatest common factor (GCF) in all t

1. **State the problem:** Simplify or factor the expression $8x^{12} - 27y^{15}$. 2. **Recognize the form:** This is a difference of cubes because $8x^{12} = (2x^4)^3$ and $27y^{15

1. **State the problem:** Simplify or analyze the expression $-xe^{-x}$. 2. **Understand the components:** The expression consists of a product of $-x$ and the exponential function

1. **Enunciado do problema:** Resolver o sistema linear por eliminação de Gauss: $$\begin{cases} 2x_1 + 2x_2 - x_3 = 1 \\ 3x_1 + x_2 - 3x_3 = 1 \\ -2x_1 - x_2 + x_3 = 0 \end{cases}

1. Escreva a expressão original: $$\left(\frac{5}{4} - \frac{1}{2}\right) - \left(\frac{1}{3} + \frac{2}{5}\right)$$

1. Planteamos el problema: Encontrar los números naturales $p$, $q$ y $n$ tales que $$\text{MCD}\left(\frac{p}{n}, \frac{q}{n}\right) = 4, \quad \text{MCD}(pn, qn) = 196, \quad p \

1. Planteamos el problema: Tenemos números naturales $p$, $q$ y $n$ tales que $$\text{MCD}(p^n, q^n) = 4 \quad \text{y} \quad \text{MCD}(p^n, q^n) = 196, \quad p \cdot q = 11760, \

1. Vamos resolver a expressão $\frac{1}{3} \cdot \left( \frac{3}{5} + \frac{1}{2} \right)$. 2. Primeiro, somamos as frações dentro dos parênteses. Para isso, encontramos o mínimo m

1. Planteamos el problema: Resolver la ecuación cuadrática $$x^2 + 11x + 30 = 0$$. 2. Usamos la fórmula general para ecuaciones cuadráticas: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a