I wondered that too. Student Web Links Factored Form of Quadratic Equations On this web page, you can explore the relationships between the factored form of a quadratic equation, the graph of the equation, and the roots when the equation is set equal to zero.

We start with 1 and want to change it. How would you normally write an equation like this? Complex Growth We can have real and imaginary growth at the same time: Once we realize that some exponential growth rate can take us from 1 to i, increasing that rate just spins us more.

We scale it by 4x the power of the exponent.

We can convert our growth into "e" format: Is the relationship you observed in Question 4 still true? Not according to s mathematician Benjamin Peirce: Summarize How are the roots of a quadratic equation related to the x-intercepts of the corresponding function? Sketch This sketch shows the graph of a quadratic equation in factored form: When I see 34, I think of it like this: If the sketch allowed you to set r1 and r2 to any real value, would the relationship still be true?

The analogy "complex numbers are 2-dimensional" helps us interpret a single complex number as a position on a circle. This is really asking for the natural log of an imaginary number: At first blush, these are really strange exponents.

We apply i units of growth in infinitely small increments, each pushing us at a degree angle. But with our analogies we can take them in stride. While writing, I thought a companion video might help explain the ideas more clearly: Combining x- and y- coordinates into a complex number is tricky, but manageable.

Change continuously by rotating at degree angle aka imaginary growth rate. And now we modify that rate again by i: When both roots are positive, what happens to the graph? We can consider this eln 2xwhich means grow instantly at a rate of ln 2 for "x" seconds.

But for an imaginary rate? And this path is the same as moving in a circle using sine and cosine in the imaginary plane.

In the sketch, what happens to the equation when either r1 or r2 becomes negative? Appendix The screencast was fun, and feedback is definitely welcome. Again, the top exponent 4 just scaled our growth rate.

So rather than rotating at a speed of i frac pi 2which is what a base of i means, we transform the rate to: How do you know? We need to noodle this over.

Regular growth compounds in our original direction, so we go 1, 2, 4, 8, 16, multiplying 2x each time and staying in the real numbers.Solving Quadratic Equations Using Factoring To solve an quadratic equation using factoring: 1.

Transform the equation using standard form in which one side is zero. 2. Factor the non-zero side. 3.

Set each factor to zero (Remember: a product of factors is zero if and only if one or more of the factors is zero). 4. Solve each resulting equation. Factored Form of Quadratic Equations On this web page, you can explore the relationships between the factored form of a quadratic equation, the graph of the equation, and the roots when the equation is set equal to zero.

Writing a polynomial in factored form when given the x-intercepts (zeros) of an equation, and their multiplicity: If a= coefficient, n 1 = first x-intercept (zero), n 2 = second x. The factored form of an equation is the simplest form of the equation that is obtained by factoring out a common variable or constant from multiple terms.

Many types of polynomials are presentable in factored form, but the more terms an equation contains, the more difficult it is to find common. May 14, · How to Factor Algebraic Equations Three Methods: Factoring Numbers and Basic Algebraic Expressions Factoring Quadratic Equations Factoring Other Forms of Equations Community Q&A In mathematics, factoring is the act of finding the numbers or expressions that multiply together to make a given number or equation%(46).

@Aditya: Thanks! Yes, it took me a while to really see the equation, there may be a nicer way to go back and streamline how it was presented — I’d like to avoid the need for people to have multiple readings:).

DownloadHow to write an equation in factored form

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