Algebra 2 Semester 1 Review

Front

Factor x² + 12x + 20

Back

(x + 10)(x + 2)

Front

Factor x² + 4x - 32

Back

(x + 8)(x - 4)

Front

Evaluate (9 + 3i)(9 - 3i)

Back

90

Front

Calculate (5 - 2i) + (-7 + 8i)

Back

-2 + 6i

Front

Calculate (3i)(-2 + 4i)

Back

-12 - 6i

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / 2a

Front

Define a complex number.

Back

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers and i is the imaginary unit.

Front

What is the difference of squares formula?

Back

a² - b² = (a - b)(a + b)

Front

What is the sum of two complex numbers?

Back

To add two complex numbers, add their real parts and their imaginary parts separately.

Front

What is the product of two complex numbers?

Back

To multiply two complex numbers, use the distributive property and combine like terms.