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How do you Simplify Expressions How do you Simplify Expressions The equations section of QuickMath allows you to solve and plot virtually any equation or system of equations. In most cases, you can find exact solutions to your equations. Even when this is not possible, QuickMath may be able to give you approximate solutions to almost any level of accuracy you require. It also contains a number of special commands for dealing with quadratic equations. Solve The Solve command can be uses to solve either a single equation for a single unknown from the basic solve page or to simultaneously solve a system of many equations in many unknowns from the advanced solve page. The advanced command allows you to specify whether you want approximate numerical answers as well as exact ones, and how many digits of accuracy (up to 16) you require. It also allows you to eliminate certain variables from the equations. Plot The Plot command, from the Graphs section, will plot any function of two variables. In order to plot a single function of x, go to the basic equation plotting page,

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where you can enter the equation and specify the upper and lower limits on x that you want the graph to be plotted for. The advanced plotting page allows you to plot up to 6 equations on the one graph, each with their own color. It also gives you control over such things as whether or not to show the axes, where the axes should be located, what the aspect ratio of the plot should be and what the range of the dependent variable should be. All equations can be given in the explicit y = f(x) form or the implicit g(x,y) = c form. Quadratics The Quadratics page contains 13 separate commands for dealing with the most common questions concerning quadratics. It allows you to : factor a quadratic function (by two different methods); solve a quadratic equation by factoring the quadratic, using the quadratic formula or by completing the square; rewrite a quadratic function in a different form by completing the square; calculate the concavity, x-intercepts, y-intercept, axis of symmetry and vertex of a parabola; plot a parabola; calculate the discriminant of a quadratic equation and use the discriminant to find the number of roots of a quadratic equation. Each command generates a complete and detailed custom-made explanation of all the steps needed to solve the problem. Whenever a problem can be simplified, you should simplify it before substituting numbers for the letters. This will make your job a lot easier! To simplify an algebraic expression: 2(3+x)+x()1-4x)+5 1. Clear the parentheses. 2. Combine like terms by adding coefficients. 3. Combine the constants. You need the TI-Nspire CX CAS. CAS stands for Computer Algebra System. With the CAS, the calculator can preform symbolic algebra which means in can simplify expressions, simplify radicals, return answers in terms of pi and e, and also preform numerous calculus functions such as derivatives and indefinite integrals. For me, the Nspire without the CAS is a huge waste of money.

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What you have without the CAS is essentially an expensive TI-84 with a color screen, file management system, and a much improved TI-Basic programming language. In layman's terms, unless you have miss-typed the full title of you calculator, you cannot simplify expressions with your calculator. If you do have a the CAS version, it wouldn't be giving you an error. Also when you're in the calculator app, press Menu, then 3:Algebra, and you'll see all the functions for simple algebraic expressions and equations.

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How do you Simplify Expressions  
How do you Simplify Expressions