🧮 algebra
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.
Linear Relation
1. The problem asks to find the values of $y$ in the relation $y = 2(x + 2)$ for given $x$ values and then draw the graph of this relation.
2. The relation is given by the function
Exponential Linear
1. The problem involves analyzing the relations and graphs of the functions given by:
$$y = 5e^{-2x}$$
Series Sums
1. **Problem statement:** Find the sums of the given arithmetic series using the provided formulas and verify the answers.
2. **Part (a): Sum of 1 + 2 + 3 + ... + 999**
Expression Simplification
1. **State the problem:** Simplify and analyze the expression $x^2 - y^2 + 2y - 1$.
2. **Group terms involving $y$:** Rewrite the expression as $x^2 - (y^2 - 2y) - 1$.
Potencias E Radicais
1. Escreva sob a forma de potência:
1.a) Temos a expressão $\left(\frac{3}{5}\right)^{\frac{2}{3}} \times \left(\frac{2}{5}\right)^{\frac{2}{3}} \times \left(\frac{5}{25}\right)^{\
One Step Equations
1. **Statement of the problem:** Solve the given one-step linear equations and verify the solutions where required.
2. **Question 1:** Solve and verify:
Factorisation Errors
1. Problem: Factorise $w^2 - 5w$.
Step 1: Identify the common factor in both terms, which is $w$.
حل المعادلة
1. نبدأ بكتابة المعادلة المعطاة:
$$ هـ - \frac{1}{2} ( ج - 6 ) = 4 $$
Polynomial Simplification
1. **Simplify expression a:**
Given: $5x^2 - 6x - 3x^2 + 7 - x^2 + 6x$
Function Transformations
1. **Problem 1: Vertical and Horizontal Translations**
We apply vertical shifts and horizontal translations to 5 functions from the list.
Expression Evaluation
1. Stated problem: Evaluate the expression $$2\sqrt{3} (\sqrt{3} + x) - 4x(x^2 - 3\sqrt{3})$$ for $$x = -\sqrt{3}$$.
2. Substitute $$x = -\sqrt{3}$$ into the expression:
Odd Even Expressions
1. The problem asks us to determine whether each expression is odd or even, given that $k$ is an even number.
2. Recall the definitions:
Expression Simplification
1. **State the problem:** Simplify the expression $9x + 2y - 4x + 11 - 6y + 5$.
2. **Group like terms:** Combine the terms with $x$, the terms with $y$, and the constant terms sepa
Fraction Comparisons
1. **Problem (a): Compare $\frac{2}{3}$ of $\frac{3}{4}$ and $\frac{3}{4}$ of $\frac{2}{3}$.**
2. "Of" means multiplication, so calculate each:
Expression Simplification
1. **State the problem:** Simplify the expression $$\frac{5x^{3}(3x^{4}y^{2})^{3}}{27(x^{5}y^{2})^{2}x^{3}y}$$ given $x=2$ and $y=444$.
2. **Simplify the numerator:**
Sum Terms
1. The problem involves finding the values of terms A, B, and C given the sums of terms involving f.
2. From the first graph example, we see that adding 9x, 5x, and 3x gives 14x, a
Simplify Expression
1. **State the problem:** Simplify the expression $5np + 7n + 5 + 3np + n + p$.
2. **Group like terms:** Group terms with $np$, terms with $n$, terms with $p$, and constants separa
Quadratic Solve
1. Stating the problem: Solve the quadratic equation $u^2 + 9u + 14 = 0$.
2. Factor the quadratic: We look for two numbers that multiply to 14 and add to 9. These numbers are 7 and
Simplify Expression
1. **State the problem:** Simplify the expression $8a + 7d - 3a + 2v - 5d + 4v$.
2. **Group like terms:** Combine terms with the same variable.
Factor Cube
1. **State the problem:** Factor the expression $x^3 - 27$.
2. Recognize that $x^3 - 27$ is a difference of cubes since $27 = 3^3$.
Simplify Expression
1. The problem is to simplify the expression $$-6m + 8m$$.
2. Both terms have the variable $m$, so we can combine them by adding their coefficients.