Problem 67 of 7
Expand the binomial with coefficients inside terms: (4x-5)^2.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
apply powers to coefficients and variables.
Hidden until you reveal it.
Raise entire terms such as 2x or -4y to the proper powers.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Identify first and second binomial terms.
2. Apply nCk(first)^(n-k)(second)^k.
3. Simplify coefficients, signs, and variable powers.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Treating 2x as x when computing powers.