In this video, the steps and rules used to solve question 5 in grade 9 practice on evaluating expressions given values of the variables are presented.
Question:
Evaluate and simplify the expressions for the given value(s) of the variable(s).
a) \( \quad \sqrt {x + 6} \; , \; \text{for} \; x = -2 \) b) \( \quad | x + y - 10| \; , \; \text{for} \; x = -4 \; \text{and} \; y = 3\) c) \( \displaystyle \quad \frac{ - x^3 + 1}{5} + \frac{ x^2 - 2}{2} \; , \; \text{for} \; x = -2 \)
Solution on video at Evaluate expressions for given values of the variables, question 5
