Click your Algebra 2 textbook below for homework help. Our answers explain actual Algebra 2 textbook homework problems. Each answer shows how to solve a. Algebra 2/Trigonometry Regents Exam. Regents Examination in Algebra II. Please note: You must use Adobe Acrobat Reader/Professional X. Free Algebra 2 worksheets created with Infinite Algebra 2. Printable in convenient PDF format.

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The 4 and the negative 4 cancel out, and that was intentional. How to graph functions and linear equations. How to solve system of linear equations.

## CHEAT SHEET

If these two things are equal and we are being told that they are, then if you add something on this side, the only way that the equality will hold is if you still do it on the left-hand side. Algebra 2 How to solve system of linear equations Overview Solving systems of equations in two variables Solving systems of equations in three variables.

Exponential and logarithmic functions. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Algebra 2 Quadratic functions and inequalities Overview How to graph quadratic functions How to solve quadratic equations The Quadratic formula Standard deviation and normal distribution.

Video transcript We’re asked to solve for x. Algebra 2 Rational expressions Overview Variation Operate on rational expressions.

### Regents Examination in Algebra II

Now just as promised, we want to solve 22 the absolute value of x plus 7, so let’s divide both sides by 14 to get rid of that coefficient there, or that factor, or whatever you want to call it, the thing that’s multiplying the absolute value of x plus 7. You have these absolute algdbra in it. Quadratic functions and inequalities.

The negative 6 and the 6 x plus 7’s cancel out, or absolute values of x plus 7’s cancel out, and that was intentional. Algebra 2 Sequences and series Overview Arithmetic sequences and series Geometric sequences and series Binomial theorem.

## Worked example: absolute value equation with two solutions

So I want to get rid of this positive 4. So just as promised, we’ve now solved for the absolute value of x plus 7, but we really need to solve for x. Aalgebra just think about that for a second. Algebra 2 Exponential and logarithmic functions Overview Exponential functions Logarithm and logarithm functions Logarithm property.

Let me just rewrite this equation so that the absolute values really pop out. Algebra 2 is the third math course in high school and will guide you through among other things linear annswers, inequalities, graphs, algbra, polynomials and radical expressions, quadratic equations, functions, exponential and logarithmic expressions, sequences and series, probability and trigonometry.

Algebra 2 Equations and inequalities Overview Solve equations and simplify expressions Line plots and stem-and-leaf plots Absolute value Solve inequalities.

And I want to get all of these constant terms on to the right-hand side. It’s this complex equation. Easiest way to get rid of it is to add 6 times the absolute value of x plus 7 to the right-hand side. So let’s try to do that. And so what does this get us? So let’s abswers that, so plus 6 times the absolute value of x plus 7.

So you could almost treat this expression– the absolute value of x plus 7, you can just treat it as a variable, and then once you solve for that, it becomes a simpler absolute value problem.

Algebra 2 Matrices Overview Basic information about matrices How to operate with matrices Determinants Using answwrs when solving system of equations. Search Pre-Algebra All courses.

Mathplanet hopes that you will enjoy studying Algebra 2 online with us! This Algebra 2 math course is divided into 13 chapters and each chapter is divided into several aalgebra. So that’s going to be 14 absolute values of x plus 7, 14 times the absolute value of x plus 7.

So how can we reason through this? Let’s try to solve for not x first. So that’s going to be equal to 2.