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# Unit 4: More on quadratics & complex numbers

1,900 possible mastery points

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Unit test

### Learn

### Practice

- Simplify roots of negative numbersGet 3 of 4 questions to level up!
- Powers of the imaginary unitGet 3 of 4 questions to level up!

### Practice

- Parts of complex numbersGet 3 of 4 questions to level up!

### Practice

- Add & subtract complex numbersGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Learn

### Practice

- Multiply complex numbers (basic)Get 3 of 4 questions to level up!
- Multiply complex numbersGet 3 of 4 questions to level up!

### Learn

### Practice

- Complex number conjugatesGet 3 of 4 questions to level up!
- Divide complex numbersGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Learn

### Practice

- Factoring quadratics introGet 3 of 4 questions to level up!
- Factoring quadratics with a common factorGet 3 of 4 questions to level up!

### Learn

### Practice

- Factor quadratics by groupingGet 3 of 4 questions to level up!

### Learn

### Practice

- Difference of squaresGet 3 of 4 questions to level up!

### Learn

### Practice

- Perfect squaresGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Quadratics by factoring (intro)Get 3 of 4 questions to level up!
- Quadratics by factoringGet 3 of 4 questions to level up!

### Practice

- Solve quadratic equations: complex solutionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

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Level up on all the skills in this unit and collect up to 1,900 Mastery points!