🧮 algebra
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Lcm Prime Factors
1. **State the problem:** We need to find the lowest common multiple (LCM) of 30 and 42 by first drawing their prime factor trees.
2. **Prime factorization:**
Prime Factor Lcm
1. **Problem statement:** Draw the prime factor tree for 190 and find the lowest common multiple (LCM) of 105 and 190.
2. **Prime factorization of 190:**
Complete Square
1. The problem is to complete the square for the quadratic trinomial $x^2 + x + 1$.
2. The formula to complete the square for a quadratic expression $ax^2 + bx + c$ (with $a=1$) is
Complete Square
1. The problem is to complete the square for the quadratic trinomial $x^2 + x + 1$.
2. The formula to complete the square for a quadratic expression $x^2 + bx + c$ is to rewrite it
Fraction Simplification
1. **State the problem:** Simplify the expression $$\left(\frac{3}{4} + \frac{5}{8}\right) - \frac{2}{7}$$.
2. **Find a common denominator for the fractions inside the parentheses:
Complete Square
1. **State the problem:** Complete the square for the quadratic trinomial $x^2 + x + 1$.
2. **Recall the formula:** To complete the square for $ax^2 + bx + c$, rewrite it as $a(x -
Graph Equations
1. **Stating the problem:**
We need to find the equations of two graphs based on given points.
Factors 30
1. The problem is to find how many factors the number 30 has.
2. To find the number of factors of a number, we first find its prime factorization.
Graph Equations
1. **State the problem:** We need to find the equations for four graphs based on their shapes and points.
2. **Top-left graph:** It is a cubic curve passing through (-2, -8), flatt
Exponent Simplification
1. **State the problem:** Calculate the value of $$\frac{16^3 - 16^2}{16}$$.
2. **Recall the formula and rules:** We will use the properties of exponents and basic algebraic simpli
Evaluate Expression
1. **State the problem:** Calculate the value of $$(33^2 - (23.2 - 145.4)) \times 2$$.
2. **Recall the order of operations:**
Simplify Expression
1. **State the problem:** Simplify the expression $$(33x^2 - (23.2 - 145.4)) \times 2$$.
2. **Understand the expression:** The expression involves subtraction inside parentheses an
Function Composition
1. **State the problem:** We are given two functions:
$$f(x) = \pm 2x$$
Ap Terms
1. **Problem 1:** Find the first term $a$ of an AP where the 43rd term $T_{43} = 26$ and the common difference $d = \frac{1}{2}$.
2. The formula for the $n$th term of an AP is
Ratio Percent
1. The problem states: "The ratio of twenty-seven and nine is equal to the thirty percent of ten."\n\n2. Let's translate the words into a mathematical statement.\n\n- "The ratio of
Ratio Percent
1. The problem states: "The ratio of twenty-seven and nine is equal to the thirty percent of ten."\n\n2. Let's translate the words into a mathematical statement.\n\n3. The ratio of
Price Adjustment
1. **State the problem:**
We start with a plane priced at 67000000. The price is first reduced by 20%, then increased by 5%. We want to calculate the amounts after each change and
Percent Equation
1. The problem states: "One thousand less twelve percent of it is eight hundred eighty." We need to convert this into a mathematical equation.
2. Let the unknown number be $x$.
Ln Geometric Mean
1. The problem is to understand the role of the natural logarithm (ln) in the geometric mean.
2. The geometric mean of $n$ positive numbers $x_1, x_2, \ldots, x_n$ is defined as:
Matrix Coefficients
1. Let's clarify the problem: You mentioned that the coefficients of the equations and the numbers in the matrix are not the same.
2. In systems of linear equations, the coefficien
Stickers Problem
1. **State the problem:** Jack had some stickers, say $x$. Ben had 470 more stickers than Jack, so Ben had $x + 470$ stickers.
2. Ben gave 735 stickers to Jack. After this, Jack's