A2: Test 4

Front

What is the standard form of a complex number?

Back

A complex number is in standard form when it is expressed as a + bi, where a and b are real numbers, and i is the imaginary unit.

Front

Simplify the expression: (4-5i)(-1-7i)

Back

-39-23i

Front

What is the process to solve a quadratic equation?

Back

Front

Solve the equation: 6x^2 = 3 - 7x

Back

x = {-\frac{3}{2}, \frac{1}{3}}

Front

Simplify the expression: (7+i) - (6-4i)

Back

1+5i

Front

What is an apparent solution set in the context of graphing equations?

Back

The apparent solution set refers to the x-values where the graph intersects the x-axis, indicating the solutions to the equation.

Front

Identify the roots of the equation: -2x^2 + 6x + 7 = 2x - 3

Back

x = {1 \pm \sqrt{6}}

Front

What is the imaginary unit 'i'?

Back

Front

What does it mean to simplify a complex number?

Back

Simplifying a complex number involves combining like terms and expressing it in the form a + bi.

Front

What is the quadratic formula?

Back