Test Alg. 2 Quadratic Formula and Complex/Imaginary Numbers

Front

What is the value of i^52?

Back

1

Front

Simplify the expression (i + 3)^2.

Back

6i + 8

Front

What is the simplified form of √-23?

Back

i√23

Front

Solve the equation 8x^2 - 18 = 0.

Back

x = \frac{3}{2}, -\frac{3}{2}

Front

Solve the equation x^2 + 10x + 35 = 0 in simplest radical form.

Back

-5 \pm i\sqrt{10}

Front

What is the Quadratic Formula?

Back

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

Front

Define complex numbers.

Back

Numbers that have a real part and an imaginary part, expressed as a + bi.

Front

What is the imaginary unit i?

Back

i is defined as the square root of -1.

Front

How do you add complex numbers?

Back

Add the real parts and the imaginary parts separately.

Front

What is the product of two complex conjugates?

Back

(a + bi)(a - bi) = a^2 + b^2.