# Algebra

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### How to Learn Algebra Fast and Do Equations. Plus, Problems with Solutions.

No website hoops. On the front page. Math rules for algebra. Algebra and equations for beginners. Complete lessons.

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### Beginning Algebra Tutorial II--Evaluating Expressions and Solving Equations

In this tutorial, I will explain how to evaluate very basic expressions and solve very basic equations. Algebra can be difficult for many people and I hope my tutorials shed a light to those that are learning for the...

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### How to Multiply Polynomials, with Examples

Learn how to multiply different types of polynomials. Learn how to multiply binomials using the FOIL method. This guide also teaches the grid method and explains why it's arguably the best way to multiply polynomials.

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### How to Solve Word Problems Using , "Let Statements"

This is the second installment in my series of math problems that tend to trip people up. This time we will be using let statements and algebraic expressions to solve word problems.

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### How to Tell if (x-a) Is a Factor of a Polynomial

How to determine if a binomial factors into a polynomial, applying the fundamental theorem of algebra...

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### How to Solve for X Using a Casio Calculator

In this article, you will learn how you can make better use of your CASIO calculator, by making it solve equations for x, in 3 easy steps. Do check this out, and maximize the advantage of your calculators!

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### What is a Polynomial? The Elements of Polynomials

Defines polynomials by showing the elements that make up a polynomial and rules regarding what's NOT considered a polynomial. Learn about different types, how to find the degree, and take a quiz to test your knowledge.

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### Direct proportion. How to write down a formula if y is directly proportional to x. Maths GCSE.

If y is directly proportional to x, then the formula connecting y and x is y = kx. Direct proportion means as x increases then so does y. k is known as the constant of proportionality and this is found by...

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### How to Solve Quadratic Systems of Equations: Examples

A system of quadratic equations is a pair of equations of the form ax^2 + bxy + cy^2 + dx + ey + f = 0 Ax^2 + Bxy + Cy^2 + Dx + Ey + F = 0, where x and y are the unknown variables, and a, b, c, d, e, f, A, B, C,...

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### How to Calculate the Distance Between a Point and a Sphere

The equation of a sphere in three-dimensional (x, y, z) coordinates is (x - a)^2 + (y - b)^2 + (z - c)^2 = r^2 where the point (a, b, c) is the center of the sphere and r is the radius. For example, the surface...

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