Question

1 which factoring pattern should you use to solve 225x² - 60x - 9?
use the pattern (√a·x = √c)² = 0 because |b| = √a√c
use the pattern (√a·x + √c)(√a·x - √c) = 0 because the values of a and c are perfect - squares, the value of |b| = 2√a√c and the sign between the two terms is subtraction.
use the pattern (√a·x + √c)(√a·x - √c) = 0 because the values of a and c are perfect - squares, the value of b is 0 and the sign between the two terms is subtraction.
use the pattern (√a·x ± √c)² = 0 because |b| = 0 and the values of a and c are perfect squares.

Explanation:

Answer:

Use the pattern \((\sqrt{a}x+\sqrt{c})(\sqrt{a}x - \sqrt{c}) = 0\) because the values of \(a\) and \(c\) are perfect - squares, the value of \(b\) is \(0\) and the sign between the two terms is subtraction.