Question

Find the factorization of the polynomial below.
81x2 - 18x + 1

Answer 1

(9x-1)²

Explanation:

81x² - 18x + 1= (9x)²- 2*9x+1²= (9x-1)²

Answer 2

(9x - 1)²

Explanation:

If you can tell, the square root of 81 is 9. This should be a clue that the polynomial could be one binomial squared. If you tried factoring starting out with 9x in both parenthesis, you could see that you would get (9x - 1)² as your answer.