# 24 Algebra 2 Tutorials

These Algebra 2 tutorials are written by experienced educators, all of whom also offer private tutoring lessons. Get the Algebra 2 help you need, whether through these tutorials or through private tutoring lessons.

## Radical Equation Posted by: Kisung Y on Apr 09, 2018

There are many kinds of equations out there in math. One of them is the radical equation. The radical is this, √, but this is actually a square root, but I will explain. Each of these equations has the same basic concept of trying to isolate the variable to try to make it equal. In…

## Long Division Posted by: Kisung Y on Mar 30, 2018

There are two ways to do division with polynomials, which are long(polynomial) division and synthetic division. In these two sample problems, this would only be done through long division. Synthetic division is the shortcut, but it only works with linear factors. You have to find the solution for x, so it can be used in…

## Imaginary Numbers Posted by: Kisung Y on Mar 29, 2018

An imaginary number is a complex number that can be written as a real number multiplied by i, which is the imaginary unit.

## Conic sections : vertices, foci and eccentricity of an ellipse. Posted by: Samuel B on Feb 11, 2018

From the equation of a conic section, here an ellipse described by 9x^2 + 36y^2 = 324, we will find vertices, foci and eccentricity. Given the equation, an oval of center (H,K) can be traced. A path of points traced (x,y) so that the sum of its distances from two fixed points is constant. The…

## Remainder Theorem Posted by: Richard T on Oct 28, 2017

the problem exploits the fundamental concept of the remainder theorem. if a polynomial f(x) is divided by Q(x), then the remainder R(x) is a polynomial whose degree is less than the degree of Q(x). If Q(x) is a quadratic expression, then R(X) is at most a linear expression.Also, if a polynomial f(x) is divided by…

## Systems of Equations Posted by: Brian A on Oct 28, 2017

When solving a system of equations involving two or more variables, one must rewrite equations so that one variable is solved in terms of the other. Then the last equation can be used to “plug in” values and solve.

## Factoring Quadratic Equations Posted by: Bryana W on Oct 15, 2017

Factoring quadractic equations is an essential skill in Algebra 2. This skill may seem difficult at first but it’s actually pretty simple once you understand the steps.

## Function Composition Posted by: Colleen R on Oct 11, 2017

Function composition is a neat little operation because it allows you to put one entire function in for another function.

## Evaluate variable expressions involving integers Posted by: Holly H on Aug 09, 2017

Starting with the basics is variables (symbols for an unknown number, usually a letter like x or y) involving integers (an integer is a whole number, not a fraction). “Evaluate variable expressions involving integers” is the same as saying “solve for x using whole numbers”. With this, we need to know the following: 1) We…

## Evaluate variable expressions involving rational numbers Posted by: Holly H on Aug 09, 2017

Variable expressions involving rational numbers are one of the first lessons in Algebra 2. A rational number is basically a fraction or a decimal, but it can’t repeat forever (infinity). Technically, it’s “any number that can be expressed as the quotient or fraction p/q of two integers.”-mathforum.org. For example, .8, which can be expressed as…

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