can u do test 1 section 3 #15?
Sure! This one is all about corresponding coefficients of equivalent polynomials. When you expand what you’re given…
…you can conclude that the corresponding coefficients of and are equal. In other words, you know that and . Since the question also tells you that , you know that either and or and . (Otherwise, won’t equal !)
The two possible values for , then, are:
That’s answer choice D.