Question

Which method is correct when finding the product of (x − 3)2? Justify your answer in complete sentences.

Method 1
(x − 3^)2
(x − 3)(x − 3)
x2 − 6x + 9


method 2

(x − 3)^2
x^2 − 3^2
x^2 − 9

Answer 1

It is the first one because the power of 2 is attached to the whole (x-3).

Answer 2

The first one...

Answer 3

Method 1 is the correct method

Answer 4

\[(x-3)^2 = (x-3)(x-3) = x^2 + 9 - 6x\]