X Squared Equals Negative 1

This is a tutorial on how to employ the Algebra Calculator, a footstep-past-step calculator for algebra.

Solving Equations

Showtime go to the Algebra Computer chief page. In the Calculator'due south text box, yous can enter a math problem that you want to calculate.

For example, try entering the equation 3x+2=14 into the text box.

Later on you enter the expression, Algebra Calculator will print a pace-by-step caption of how to solve 3x+two=14.

Examples

To see more examples of problems that Algebra Calculator understands, visit the Examples page. Feel costless to try them now.

Math Symbols

If you would like to create your own math expressions, hither are some symbols that Algebra Reckoner understands:

+ (Addition)
- (Subtraction)
* (Multiplication)
/ (Division)
^ (Exponent: "raised to the power")

Graphing

To graph an equation, enter an equation that starts with "y=" or "x=". Hither are some examples: y=2x^2+1, y=3x-ane, 10=v, x=y^two.

To graph a signal, enter an ordered pair with the x-coordinate and y-coordinate separated past a comma, eastward.g., (iii,4).

To graph 2 objects, simply place a semicolon betwixt the two commands, e.g., y=2x^2+1; y=3x-1.

Polynomials

Algebra Computer can simplify polynomials, but it only supports polynomials containing the variable x.

Here are some examples: 10^ii + 10 + 2 + (2x^two - 2x), (ten+3)^2.

Evaluating Expressions

Algebra Estimator can evaluate expressions that contain the variable 10.

To evaluate an expression containing x, enter the expression you want to evaluate, followed by the @ sign and the value yous want to plug in for 10. For example the command 2x @ iii evaluates the expression 2x for x=three, which is equal to 2*3 or half dozen.

Algebra Calculator can too evaluate expressions that comprise variables x and y. To evaluate an expression containing ten and y, enter the expression you lot want to evaluate, followed by the @ sign and an ordered pair containing your ten-value and y-value. Here is an example evaluating the expression xy at the point (three,4): xy @ (three,4).

Checking Answers For Solving Equations

But as Algebra Calculator tin be used to evaluate expressions, Algebra Reckoner can besides be used to cheque answers for solving equations containing 10.

Equally an instance, suppose we solved 2x+three=7 and got x=2. If we desire to plug 2 back into the original equation to check our work, nosotros can do so: 2x+3=7 @ 2. Since the answer is correct, Algebra Reckoner shows a green equals sign.

If nosotros instead try a value that doesn't work, say x=3 (try 2x+3=7 @ 3), Algebra Calculator shows a red "not equals" sign instead.

To check an answer to a system of equations containing x and y, enter the two equations separated by a semicolon, followed by the @ sign and an ordered pair containing your x-value and y-value. Example: ten+y=7; 10+2y=11 @ (three,4).

Tablet Manner

If y'all are using a tablet such as the iPad, enter Tablet Fashion to display a touch keypad.

Evaluating Expressions Using Algebra Calculator
Checking Answers Using Algebra Calculator
Solving Equations Using Algebra Calculator
Solving Systems of Equations Using Algebra Calculator
Graphing Equations Using Algebra Calculator