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Still Confused?

Try reviewing these fundamentals first.

Still Confused?

Try reviewing these fundamentals first.

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Get Started Now- Intro Lesson5:45
- Lesson: 1a3:32
- Lesson: 1b3:11
- Lesson: 1c6:19
- Lesson: 24:13

Now that we know the basics of imaginary numbers, let's expand our knowledge and learn about another concept that is closely tied to imaginary numbers – complex numbers, a number that is consisted of a real part, and an imaginary part. In this section, we will learn what makes up a complex number, as well as how to plot on a complex plane.

Basic concepts: Evaluating and simplifying radicals, Solving quadratic equations using the quadratic formula, Nature of roots of quadratic equations: The discriminant,

Related concepts: Imaginary zeros of polynomials,

- Introduction
- 1.For the following quadratic equations,

i) find and classify the roots

ii) plot the roots on the complex plane

a)$y=x^2-1$b)$y=x^2+1$c)$y=-x^2+2x-5$ - 2.Given that function $f(x)=2x^2-2x+3$, find the roots of the function

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