Question

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

Answer 1

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