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If a is a constant such that 9x^2 + 36x + a is the square of a binomial, then what is a?

 Jul 5, 2021
 #1
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9x^2   +  36x   +   a

 

Note   :

 

(3x  + 6)^2   =

 

(3x + 6) (3x + 6)  = 

 

9x^2  +  36x   +  36

 

a  = 36

 

 

cool cool cool

 Jul 5, 2021

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