MakinleeN64820 MakinleeN64820

04-11-2022
Mathematics

contestada

What are the factors of9x2 + 42x + 49(3x + 7)O(9x + 7)?O (3x + 7) (3x – 7)(3x – 7)

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LayanneN766700 LayanneN766700

04-11-2022

Problem

9x^2 + 42x + 49

Solution

For this case we can use the following general ffactorization case ax^2+bx+c

And then the solution would be:

(3x+7)(3x+7)

And we can verify

(3x+7)(3x+7)= 9x^2 +21x+21x+49=9x^2 +42x+49

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