Question 2 (1 point)
Which is the correct expansion of: $(x-7)(x-3)$ ?
Final Answer: The correct expansion of \((x-7)(x-3)\) is \(\boxed{x^2 - 10x + 21}\).
Step 1 :This is a simple binomial expansion problem. The formula for the expansion of \((a-b)(a-c)\) is \(a^2 - (b+c)a + bc\). In this case, \(a = x\), \(b = 7\), and \(c = 3\). So, we can substitute these values into the formula to get the expansion.
Step 2 :The expansion of the expression \((x-7)(x-3)\) is \(x^2 - 10x + 21\).
Step 3 :Final Answer: The correct expansion of \((x-7)(x-3)\) is \(\boxed{x^2 - 10x + 21}\).