Answer:
(6x + 7y)(6x - 7y)
Step-by-step explanation:
36x² - 49y²
= (6x)² - (7y)²
= (6x + 7y)(6x - 7y)
In this question we used the identity-
a² - b² = (a + b)(a - b)
(6x - 7y)(6x + 7y)
36x² - 49y² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
= (6x - 7y)(6x + 7y)
8. -1
6-9=-3
-3/3=-1
a) 5+(-1)
b) 5-1
c) 4 is the value
the answer is 4, just kidding it's 2