Question: If x = 5, what is the value of (x - 1)²?
Options:
16
20
25
36
Correct Answer: 16
Solution:
(x - 1)² = (5 - 1)² = 4² = 16.
If x = 5, what is the value of (x - 1)²?
Practice Questions
Q1
If x = 5, what is the value of (x - 1)²?
16
20
25
36
Questions & Step-by-Step Solutions
If x = 5, what is the value of (x - 1)²?
Step 1: Start with the expression (x - 1)².
Step 2: Substitute the value of x, which is 5, into the expression. This gives us (5 - 1)².
Step 3: Calculate the value inside the parentheses: 5 - 1 = 4.
Step 4: Now we have (4)².
Step 5: Calculate 4 squared, which is 4 * 4 = 16.
Algebraic Expression Evaluation – The question tests the ability to evaluate a simple algebraic expression by substituting a given value for the variable.
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