Answer:
It is 2 π r
Step-by-step explanation:
Hope this helps you!!!1
Answer:
the answer of this question is i dont know
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
100
100
100
100
3
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5
3
3
3
I think this is what you're asking.. If not.. I'm sorry.
