Evaluating Algebraic Expressions

Each of the problems below is a link. If you click on the problem, it will take you to a YouTube video of a full, step-by-step solution for the problem. You may try these problems as practice and use the videos to check your answer, or you can just watch the videos to see more worked-out example problems.

Evaluate negative y minus 8x when x = negative 4 and y = 5
Evaluate 3 y squared minus 6y minus 5 when y = negative 2
Evaluate left paren 2 + a right paren b when a = negative 3 and b = negative 2
Evaluate left paren x + y right paren squared - absolute value x + y absolute value when x = 3 and y = negative 5
Evaluate b squared minus 4ac when a = negative 3, b = 8, and c = negative 2
Evaluate the fraction with numerator x - a and denominator y - b when x = negative 1, y = 3, a = 3, and b = 4
Evaluate b squared minus 4ac when a = 1 half, b = 2 thirds, and c = negative 1 third