Is equality correct?
Is equality correct?
To solve this problem, we'll confirm whether is a true equality by expanding and simplifying the left-hand expression.
Step 1: Use the FOIL method to expand .
First: Multiply the first terms: .
Outer: Multiply the outer terms: .
Inner: Multiply the inner terms: .
Last: Multiply the last terms: .
Step 2: Combine these results:
Step 3: Compare with the right-hand side:
The expanded form is , which matches the right side of the original equation.
Therefore, the expression correctly simplifies to , verifying the equality.
Thus, the correct answer is: Yes.
Yes