Answer:
ab² - 9
Step-by-step explanation:
Given in the question an expression
(ab + 3)(ab - 3)
To product mentally we will use polynomial identity called
Difference of squares
<h3>a² - b² = (a+b)(a-b) </h3>
here a = ab
b = 3
(ab + 3)(ab - 3) = ab² - 3² = ab² - 9
Step-by-step explanation:
here u go ..ntgs different hope this will too helps ..stay safe
The property is product which is multiplication
Answer:
I don't know
Step-by-step explanation:
Sorry cause i have no answer too
The correct answer for this question is A