Grade 11 Complex Numbers & Polynomials Quiz

A free Grade 11 Complex Numbers & Polynomials quiz. Play without signing up; sign in to save your score.

Grade 11 gradeMath subjectFree quiz

Grade 11 complex numbers treat i as a number with i² = −1, then add, subtract, multiply, and take conjugates. Students plot a + bi in the plane and use modulus. Polynomial work connects through the factor and remainder theorems and the fact that nonreal roots of real polynomials come in conjugate pairs.

The Grade 11 Complex Numbers & Polynomials quiz is free to play without signing up. Sign in to save scores. Classic has a timer; Trivi gives three hearts; Learn is untimed with no score.

What you practice

These are the Grade 11 Complex Numbers & Polynomials skills this quiz is built around.

Add, subtract, and multiply complex numbers and simplify powers of i.
Use a conjugate to divide complex numbers or find a modulus.
Apply the remainder theorem and factor a polynomial given a known zero.

A useful tip

i² = −1, so i³ = −i and i⁴ = 1. Reducing the exponent modulo 4 is faster than multiplying i by itself many times.

Frequently asked questions

What does Grade 11 Complex Numbers & Polynomials practice?

Practice includes: Add, subtract, and multiply complex numbers and simplify powers of i; Use a conjugate to divide complex numbers or find a modulus; Apply the remainder theorem and factor a polynomial given a known zero.

Is the Grade 11 Complex Numbers & Polynomials quiz free?

Yes. This quiz is free to play without signing up. Sign in to save your scores and progress.

What game modes can I use?

Classic has a timer; Trivi gives three hearts; Learn is untimed with no score.