9x² - 49
(3x)² - (7)²
= (3x + 7)(3x - 7)
This type of factoring is called Difference of Two Squares
where x² - y² = (x + y)(x - y)
Answer:
abbfbfv gb fg
Step-by-step explanation:
fv bfxc bxfv
First
Mutliply -2 and -3
Then
Add 4+6+5
Finally
4+6=10
And then
10+5=15