Answer :
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
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