Answer:
3
Step-by-step explanation:
Assuming a typo in your question. Sqrt(9) = 3
b
Given
x² - 3x
add ( half the coefficient of the x- term)²
x² + 2(- )x + (- )²
= (x - )² +
(3 x 10) + (6 x 11). Hope this helps. Happy Thanksgiving